> -----Original Message-----
> From: Li, Xiaoyun
> Sent: Monday, October 2, 2017 5:13 PM
> To: Ananyev, Konstantin <konstantin.anan...@intel.com>; Richardson, Bruce
> <bruce.richard...@intel.com>
> Cc: Lu, Wenzhuo <wenzhuo...@intel.com>; Zhang, Helin <helin.zh...@intel.com>;
> dev@dpdk.org; Li, Xiaoyun <xiaoyun...@intel.com>
> Subject: [PATCH v4 1/3] eal/x86: run-time dispatch over memcpy
>
> This patch dynamically selects functions of memcpy at run-time based
> on CPU flags that current machine supports. This patch uses function
> pointers which are bind to the relative functions at constrctor time.
> In addition, AVX512 instructions set would be compiled only if users
> config it enabled and the compiler supports it.
>
> Signed-off-by: Xiaoyun Li <xiaoyun...@intel.com>
> ---
> v2
> * Use gcc function multi-versioning to avoid compilation issues.
> * Add macros for AVX512 and AVX2. Only if users enable AVX512 and the
> compiler supports it, the AVX512 codes would be compiled. Only if the
> compiler supports AVX2, the AVX2 codes would be compiled.
>
> v3
> * Reduce function calls via only keep rte_memcpy_xxx.
> * Add conditions that when copy size is small, use inline code path.
> Otherwise, use dynamic code path.
> * To support attribute target, clang version must be greater than 3.7.
> Otherwise, would choose SSE/AVX code path, the same as before.
> * Move two mocro functions to the top of the code since they would be
> used in inline SSE/AVX and dynamic SSE/AVX codes.
>
> v4
> * Modify rte_memcpy.h to several .c files and modify makefiles to compile
> AVX2 and AVX512 files.
Could you explain to me why instead of reusing existing rte_memcpy() code
to generate _sse/_avx2/ax512f flavors you keep pushing changes with 3 separate
implementations?
Obviously that is much more expensive in terms of maintenance and doesn't look
like
feasible solution to me.
Is existing rte_memcpy() implementation is not good enough in terms of
functionality and/or performance?
If so, can you outline these problems and try to fix them first.
Konstantin
>
> lib/librte_eal/bsdapp/eal/Makefile | 17 +
> .../common/include/arch/x86/rte_memcpy.c | 59 ++
> .../common/include/arch/x86/rte_memcpy.h | 861 +------------------
> .../common/include/arch/x86/rte_memcpy_avx2.c | 291 +++++++
> .../common/include/arch/x86/rte_memcpy_avx512f.c | 316 +++++++
> .../common/include/arch/x86/rte_memcpy_internal.h | 909
> +++++++++++++++++++++
> .../common/include/arch/x86/rte_memcpy_sse.c | 585 +++++++++++++
> lib/librte_eal/linuxapp/eal/Makefile | 17 +
> mk/rte.cpuflags.mk | 14 +
> 9 files changed, 2223 insertions(+), 846 deletions(-)
> create mode 100644 lib/librte_eal/common/include/arch/x86/rte_memcpy.c
> create mode 100644 lib/librte_eal/common/include/arch/x86/rte_memcpy_avx2.c
> create mode 100644
> lib/librte_eal/common/include/arch/x86/rte_memcpy_avx512f.c
> create mode 100644
> lib/librte_eal/common/include/arch/x86/rte_memcpy_internal.h
> create mode 100644 lib/librte_eal/common/include/arch/x86/rte_memcpy_sse.c
>
> diff --git a/lib/librte_eal/bsdapp/eal/Makefile
> b/lib/librte_eal/bsdapp/eal/Makefile
> index 005019e..27023c6 100644
> --- a/lib/librte_eal/bsdapp/eal/Makefile
> +++ b/lib/librte_eal/bsdapp/eal/Makefile
> @@ -36,6 +36,7 @@ LIB = librte_eal.a
> ARCH_DIR ?= $(RTE_ARCH)
> VPATH += $(RTE_SDK)/lib/librte_eal/common
> VPATH += $(RTE_SDK)/lib/librte_eal/common/arch/$(ARCH_DIR)
> +VPATH += $(RTE_SDK)/lib/librte_eal/common/include/arch/$(ARCH_DIR)
>
> CFLAGS += -I$(SRCDIR)/include
> CFLAGS += -I$(RTE_SDK)/lib/librte_eal/common
> @@ -93,6 +94,22 @@ SRCS-$(CONFIG_RTE_EXEC_ENV_BSDAPP) += rte_service.c
> SRCS-$(CONFIG_RTE_EXEC_ENV_BSDAPP) += rte_cpuflags.c
> SRCS-$(CONFIG_RTE_ARCH_X86) += rte_spinlock.c
>
> +# for run-time dispatch of memcpy
> +SRCS-$(CONFIG_RTE_ARCH_X86) += rte_memcpy.c
> +SRCS-$(CONFIG_RTE_ARCH_X86) += rte_memcpy_sse.c
> +
> +# if the compiler supports AVX512, add avx512 file
> +ifneq ($(filter $(MACHINE_CFLAGS),CC_SUPPORT_AVX512F),)
> +SRCS-$(CONFIG_RTE_ARCH_X86) += rte_memcpy_avx512f.c
> +CFLAGS_rte_memcpy_avx512f.o += -mavx512f
> +endif
> +
> +# if the compiler supports AVX2, add avx2 file
> +ifneq ($(filter $(MACHINE_CFLAGS),CC_SUPPORT_AVX2),)
> +SRCS-$(CONFIG_RTE_ARCH_X86) += rte_memcpy_avx2.c
> +CFLAGS_rte_memcpy_avx2.o += -mavx2
> +endif
> +
> CFLAGS_eal_common_cpuflags.o := $(CPUFLAGS_LIST)
>
> CFLAGS_eal.o := -D_GNU_SOURCE
> diff --git a/lib/librte_eal/common/include/arch/x86/rte_memcpy.c
> b/lib/librte_eal/common/include/arch/x86/rte_memcpy.c
> new file mode 100644
> index 0000000..74ae702
> --- /dev/null
> +++ b/lib/librte_eal/common/include/arch/x86/rte_memcpy.c
> @@ -0,0 +1,59 @@
> +/*-
> + * BSD LICENSE
> + *
> + * Copyright(c) 2010-2017 Intel Corporation. All rights reserved.
> + * All rights reserved.
> + *
> + * Redistribution and use in source and binary forms, with or without
> + * modification, are permitted provided that the following conditions
> + * are met:
> + *
> + * * Redistributions of source code must retain the above copyright
> + * notice, this list of conditions and the following disclaimer.
> + * * Redistributions in binary form must reproduce the above copyright
> + * notice, this list of conditions and the following disclaimer in
> + * the documentation and/or other materials provided with the
> + * distribution.
> + * * Neither the name of Intel Corporation nor the names of its
> + * contributors may be used to endorse or promote products derived
> + * from this software without specific prior written permission.
> + *
> + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
> + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
> + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
> + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
> + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
> + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
> + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> + */
> +
> +#include <rte_memcpy.h>
> +#include <rte_cpuflags.h>
> +#include <rte_log.h>
> +
> +void *(*rte_memcpy_ptr)(void *dst, const void *src, size_t n) = NULL;
> +
> +static void __attribute__((constructor))
> +rte_memcpy_init(void)
> +{
> +#ifdef CC_SUPPORT_AVX512F
> + if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F)) {
> + rte_memcpy_ptr = rte_memcpy_avx512f;
> + RTE_LOG(DEBUG, EAL, "AVX512 memcpy is using!\n");
> + return;
> + }
> +#endif
> +#ifdef CC_SUPPORT_AVX2
> + if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2)) {
> + rte_memcpy_ptr = rte_memcpy_avx2;
> + RTE_LOG(DEBUG, EAL, "AVX2 memcpy is using!\n");
> + return;
> + }
> +#endif
> + rte_memcpy_ptr = rte_memcpy_sse;
> + RTE_LOG(DEBUG, EAL, "Default SSE/AVX memcpy is using!\n");
> +}
> diff --git a/lib/librte_eal/common/include/arch/x86/rte_memcpy.h
> b/lib/librte_eal/common/include/arch/x86/rte_memcpy.h
> index 74c280c..460dcdb 100644
> --- a/lib/librte_eal/common/include/arch/x86/rte_memcpy.h
> +++ b/lib/librte_eal/common/include/arch/x86/rte_memcpy.h
> @@ -1,7 +1,7 @@
> /*-
> * BSD LICENSE
> *
> - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
> + * Copyright(c) 2010-2017 Intel Corporation. All rights reserved.
> * All rights reserved.
> *
> * Redistribution and use in source and binary forms, with or without
> @@ -34,867 +34,36 @@
> #ifndef _RTE_MEMCPY_X86_64_H_
> #define _RTE_MEMCPY_X86_64_H_
>
> -/**
> - * @file
> - *
> - * Functions for SSE/AVX/AVX2/AVX512 implementation of memcpy().
> - */
> -
> -#include <stdio.h>
> -#include <stdint.h>
> -#include <string.h>
> -#include <rte_vect.h>
> -#include <rte_common.h>
> +#include <rte_memcpy_internal.h>
>
> #ifdef __cplusplus
> extern "C" {
> #endif
>
> -/**
> - * Copy bytes from one location to another. The locations must not overlap.
> - *
> - * @note This is implemented as a macro, so it's address should not be taken
> - * and care is needed as parameter expressions may be evaluated multiple
> times.
> - *
> - * @param dst
> - * Pointer to the destination of the data.
> - * @param src
> - * Pointer to the source data.
> - * @param n
> - * Number of bytes to copy.
> - * @return
> - * Pointer to the destination data.
> - */
> -static __rte_always_inline void *
> -rte_memcpy(void *dst, const void *src, size_t n);
> -
> -#ifdef RTE_MACHINE_CPUFLAG_AVX512F
> +#define RTE_X86_MEMCPY_THRESH 128
>
> -#define ALIGNMENT_MASK 0x3F
> +extern void *
> +(*rte_memcpy_ptr)(void *dst, const void *src, size_t n);
>
> /**
> - * AVX512 implementation below
> + * Different implementations of memcpy.
> */
> +extern void*
> +rte_memcpy_avx512f(void *dst, const void *src, size_t n);
>
> -/**
> - * Copy 16 bytes from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov16(uint8_t *dst, const uint8_t *src)
> -{
> - __m128i xmm0;
> -
> - xmm0 = _mm_loadu_si128((const __m128i *)src);
> - _mm_storeu_si128((__m128i *)dst, xmm0);
> -}
> -
> -/**
> - * Copy 32 bytes from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov32(uint8_t *dst, const uint8_t *src)
> -{
> - __m256i ymm0;
> +extern void *
> +rte_memcpy_avx2(void *dst, const void *src, size_t n);
>
> - ymm0 = _mm256_loadu_si256((const __m256i *)src);
> - _mm256_storeu_si256((__m256i *)dst, ymm0);
> -}
> -
> -/**
> - * Copy 64 bytes from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov64(uint8_t *dst, const uint8_t *src)
> -{
> - __m512i zmm0;
> -
> - zmm0 = _mm512_loadu_si512((const void *)src);
> - _mm512_storeu_si512((void *)dst, zmm0);
> -}
> -
> -/**
> - * Copy 128 bytes from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov128(uint8_t *dst, const uint8_t *src)
> -{
> - rte_mov64(dst + 0 * 64, src + 0 * 64);
> - rte_mov64(dst + 1 * 64, src + 1 * 64);
> -}
> -
> -/**
> - * Copy 256 bytes from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov256(uint8_t *dst, const uint8_t *src)
> -{
> - rte_mov64(dst + 0 * 64, src + 0 * 64);
> - rte_mov64(dst + 1 * 64, src + 1 * 64);
> - rte_mov64(dst + 2 * 64, src + 2 * 64);
> - rte_mov64(dst + 3 * 64, src + 3 * 64);
> -}
> -
> -/**
> - * Copy 128-byte blocks from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov128blocks(uint8_t *dst, const uint8_t *src, size_t n)
> -{
> - __m512i zmm0, zmm1;
> -
> - while (n >= 128) {
> - zmm0 = _mm512_loadu_si512((const void *)(src + 0 * 64));
> - n -= 128;
> - zmm1 = _mm512_loadu_si512((const void *)(src + 1 * 64));
> - src = src + 128;
> - _mm512_storeu_si512((void *)(dst + 0 * 64), zmm0);
> - _mm512_storeu_si512((void *)(dst + 1 * 64), zmm1);
> - dst = dst + 128;
> - }
> -}
> -
> -/**
> - * Copy 512-byte blocks from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov512blocks(uint8_t *dst, const uint8_t *src, size_t n)
> -{
> - __m512i zmm0, zmm1, zmm2, zmm3, zmm4, zmm5, zmm6, zmm7;
> -
> - while (n >= 512) {
> - zmm0 = _mm512_loadu_si512((const void *)(src + 0 * 64));
> - n -= 512;
> - zmm1 = _mm512_loadu_si512((const void *)(src + 1 * 64));
> - zmm2 = _mm512_loadu_si512((const void *)(src + 2 * 64));
> - zmm3 = _mm512_loadu_si512((const void *)(src + 3 * 64));
> - zmm4 = _mm512_loadu_si512((const void *)(src + 4 * 64));
> - zmm5 = _mm512_loadu_si512((const void *)(src + 5 * 64));
> - zmm6 = _mm512_loadu_si512((const void *)(src + 6 * 64));
> - zmm7 = _mm512_loadu_si512((const void *)(src + 7 * 64));
> - src = src + 512;
> - _mm512_storeu_si512((void *)(dst + 0 * 64), zmm0);
> - _mm512_storeu_si512((void *)(dst + 1 * 64), zmm1);
> - _mm512_storeu_si512((void *)(dst + 2 * 64), zmm2);
> - _mm512_storeu_si512((void *)(dst + 3 * 64), zmm3);
> - _mm512_storeu_si512((void *)(dst + 4 * 64), zmm4);
> - _mm512_storeu_si512((void *)(dst + 5 * 64), zmm5);
> - _mm512_storeu_si512((void *)(dst + 6 * 64), zmm6);
> - _mm512_storeu_si512((void *)(dst + 7 * 64), zmm7);
> - dst = dst + 512;
> - }
> -}
> -
> -static inline void *
> -rte_memcpy_generic(void *dst, const void *src, size_t n)
> -{
> - uintptr_t dstu = (uintptr_t)dst;
> - uintptr_t srcu = (uintptr_t)src;
> - void *ret = dst;
> - size_t dstofss;
> - size_t bits;
> -
> - /**
> - * Copy less than 16 bytes
> - */
> - if (n < 16) {
> - if (n & 0x01) {
> - *(uint8_t *)dstu = *(const uint8_t *)srcu;
> - srcu = (uintptr_t)((const uint8_t *)srcu + 1);
> - dstu = (uintptr_t)((uint8_t *)dstu + 1);
> - }
> - if (n & 0x02) {
> - *(uint16_t *)dstu = *(const uint16_t *)srcu;
> - srcu = (uintptr_t)((const uint16_t *)srcu + 1);
> - dstu = (uintptr_t)((uint16_t *)dstu + 1);
> - }
> - if (n & 0x04) {
> - *(uint32_t *)dstu = *(const uint32_t *)srcu;
> - srcu = (uintptr_t)((const uint32_t *)srcu + 1);
> - dstu = (uintptr_t)((uint32_t *)dstu + 1);
> - }
> - if (n & 0x08)
> - *(uint64_t *)dstu = *(const uint64_t *)srcu;
> - return ret;
> - }
> -
> - /**
> - * Fast way when copy size doesn't exceed 512 bytes
> - */
> - if (n <= 32) {
> - rte_mov16((uint8_t *)dst, (const uint8_t *)src);
> - rte_mov16((uint8_t *)dst - 16 + n,
> - (const uint8_t *)src - 16 + n);
> - return ret;
> - }
> - if (n <= 64) {
> - rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> - rte_mov32((uint8_t *)dst - 32 + n,
> - (const uint8_t *)src - 32 + n);
> - return ret;
> - }
> - if (n <= 512) {
> - if (n >= 256) {
> - n -= 256;
> - rte_mov256((uint8_t *)dst, (const uint8_t *)src);
> - src = (const uint8_t *)src + 256;
> - dst = (uint8_t *)dst + 256;
> - }
> - if (n >= 128) {
> - n -= 128;
> - rte_mov128((uint8_t *)dst, (const uint8_t *)src);
> - src = (const uint8_t *)src + 128;
> - dst = (uint8_t *)dst + 128;
> - }
> -COPY_BLOCK_128_BACK63:
> - if (n > 64) {
> - rte_mov64((uint8_t *)dst, (const uint8_t *)src);
> - rte_mov64((uint8_t *)dst - 64 + n,
> - (const uint8_t *)src - 64 + n);
> - return ret;
> - }
> - if (n > 0)
> - rte_mov64((uint8_t *)dst - 64 + n,
> - (const uint8_t *)src - 64 + n);
> - return ret;
> - }
> -
> - /**
> - * Make store aligned when copy size exceeds 512 bytes
> - */
> - dstofss = ((uintptr_t)dst & 0x3F);
> - if (dstofss > 0) {
> - dstofss = 64 - dstofss;
> - n -= dstofss;
> - rte_mov64((uint8_t *)dst, (const uint8_t *)src);
> - src = (const uint8_t *)src + dstofss;
> - dst = (uint8_t *)dst + dstofss;
> - }
> -
> - /**
> - * Copy 512-byte blocks.
> - * Use copy block function for better instruction order control,
> - * which is important when load is unaligned.
> - */
> - rte_mov512blocks((uint8_t *)dst, (const uint8_t *)src, n);
> - bits = n;
> - n = n & 511;
> - bits -= n;
> - src = (const uint8_t *)src + bits;
> - dst = (uint8_t *)dst + bits;
> -
> - /**
> - * Copy 128-byte blocks.
> - * Use copy block function for better instruction order control,
> - * which is important when load is unaligned.
> - */
> - if (n >= 128) {
> - rte_mov128blocks((uint8_t *)dst, (const uint8_t *)src, n);
> - bits = n;
> - n = n & 127;
> - bits -= n;
> - src = (const uint8_t *)src + bits;
> - dst = (uint8_t *)dst + bits;
> - }
> -
> - /**
> - * Copy whatever left
> - */
> - goto COPY_BLOCK_128_BACK63;
> -}
> -
> -#elif defined RTE_MACHINE_CPUFLAG_AVX2
> -
> -#define ALIGNMENT_MASK 0x1F
> -
> -/**
> - * AVX2 implementation below
> - */
> -
> -/**
> - * Copy 16 bytes from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov16(uint8_t *dst, const uint8_t *src)
> -{
> - __m128i xmm0;
> -
> - xmm0 = _mm_loadu_si128((const __m128i *)src);
> - _mm_storeu_si128((__m128i *)dst, xmm0);
> -}
> -
> -/**
> - * Copy 32 bytes from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov32(uint8_t *dst, const uint8_t *src)
> -{
> - __m256i ymm0;
> -
> - ymm0 = _mm256_loadu_si256((const __m256i *)src);
> - _mm256_storeu_si256((__m256i *)dst, ymm0);
> -}
> -
> -/**
> - * Copy 64 bytes from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov64(uint8_t *dst, const uint8_t *src)
> -{
> - rte_mov32((uint8_t *)dst + 0 * 32, (const uint8_t *)src + 0 * 32);
> - rte_mov32((uint8_t *)dst + 1 * 32, (const uint8_t *)src + 1 * 32);
> -}
> -
> -/**
> - * Copy 128 bytes from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov128(uint8_t *dst, const uint8_t *src)
> -{
> - rte_mov32((uint8_t *)dst + 0 * 32, (const uint8_t *)src + 0 * 32);
> - rte_mov32((uint8_t *)dst + 1 * 32, (const uint8_t *)src + 1 * 32);
> - rte_mov32((uint8_t *)dst + 2 * 32, (const uint8_t *)src + 2 * 32);
> - rte_mov32((uint8_t *)dst + 3 * 32, (const uint8_t *)src + 3 * 32);
> -}
> -
> -/**
> - * Copy 128-byte blocks from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov128blocks(uint8_t *dst, const uint8_t *src, size_t n)
> -{
> - __m256i ymm0, ymm1, ymm2, ymm3;
> -
> - while (n >= 128) {
> - ymm0 = _mm256_loadu_si256((const __m256i *)((const uint8_t
> *)src + 0 * 32));
> - n -= 128;
> - ymm1 = _mm256_loadu_si256((const __m256i *)((const uint8_t
> *)src + 1 * 32));
> - ymm2 = _mm256_loadu_si256((const __m256i *)((const uint8_t
> *)src + 2 * 32));
> - ymm3 = _mm256_loadu_si256((const __m256i *)((const uint8_t
> *)src + 3 * 32));
> - src = (const uint8_t *)src + 128;
> - _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 0 * 32), ymm0);
> - _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 1 * 32), ymm1);
> - _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 2 * 32), ymm2);
> - _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 3 * 32), ymm3);
> - dst = (uint8_t *)dst + 128;
> - }
> -}
> -
> -static inline void *
> -rte_memcpy_generic(void *dst, const void *src, size_t n)
> -{
> - uintptr_t dstu = (uintptr_t)dst;
> - uintptr_t srcu = (uintptr_t)src;
> - void *ret = dst;
> - size_t dstofss;
> - size_t bits;
> -
> - /**
> - * Copy less than 16 bytes
> - */
> - if (n < 16) {
> - if (n & 0x01) {
> - *(uint8_t *)dstu = *(const uint8_t *)srcu;
> - srcu = (uintptr_t)((const uint8_t *)srcu + 1);
> - dstu = (uintptr_t)((uint8_t *)dstu + 1);
> - }
> - if (n & 0x02) {
> - *(uint16_t *)dstu = *(const uint16_t *)srcu;
> - srcu = (uintptr_t)((const uint16_t *)srcu + 1);
> - dstu = (uintptr_t)((uint16_t *)dstu + 1);
> - }
> - if (n & 0x04) {
> - *(uint32_t *)dstu = *(const uint32_t *)srcu;
> - srcu = (uintptr_t)((const uint32_t *)srcu + 1);
> - dstu = (uintptr_t)((uint32_t *)dstu + 1);
> - }
> - if (n & 0x08) {
> - *(uint64_t *)dstu = *(const uint64_t *)srcu;
> - }
> - return ret;
> - }
> -
> - /**
> - * Fast way when copy size doesn't exceed 256 bytes
> - */
> - if (n <= 32) {
> - rte_mov16((uint8_t *)dst, (const uint8_t *)src);
> - rte_mov16((uint8_t *)dst - 16 + n,
> - (const uint8_t *)src - 16 + n);
> - return ret;
> - }
> - if (n <= 48) {
> - rte_mov16((uint8_t *)dst, (const uint8_t *)src);
> - rte_mov16((uint8_t *)dst + 16, (const uint8_t *)src + 16);
> - rte_mov16((uint8_t *)dst - 16 + n,
> - (const uint8_t *)src - 16 + n);
> - return ret;
> - }
> - if (n <= 64) {
> - rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> - rte_mov32((uint8_t *)dst - 32 + n,
> - (const uint8_t *)src - 32 + n);
> - return ret;
> - }
> - if (n <= 256) {
> - if (n >= 128) {
> - n -= 128;
> - rte_mov128((uint8_t *)dst, (const uint8_t *)src);
> - src = (const uint8_t *)src + 128;
> - dst = (uint8_t *)dst + 128;
> - }
> -COPY_BLOCK_128_BACK31:
> - if (n >= 64) {
> - n -= 64;
> - rte_mov64((uint8_t *)dst, (const uint8_t *)src);
> - src = (const uint8_t *)src + 64;
> - dst = (uint8_t *)dst + 64;
> - }
> - if (n > 32) {
> - rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> - rte_mov32((uint8_t *)dst - 32 + n,
> - (const uint8_t *)src - 32 + n);
> - return ret;
> - }
> - if (n > 0) {
> - rte_mov32((uint8_t *)dst - 32 + n,
> - (const uint8_t *)src - 32 + n);
> - }
> - return ret;
> - }
> -
> - /**
> - * Make store aligned when copy size exceeds 256 bytes
> - */
> - dstofss = (uintptr_t)dst & 0x1F;
> - if (dstofss > 0) {
> - dstofss = 32 - dstofss;
> - n -= dstofss;
> - rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> - src = (const uint8_t *)src + dstofss;
> - dst = (uint8_t *)dst + dstofss;
> - }
> -
> - /**
> - * Copy 128-byte blocks
> - */
> - rte_mov128blocks((uint8_t *)dst, (const uint8_t *)src, n);
> - bits = n;
> - n = n & 127;
> - bits -= n;
> - src = (const uint8_t *)src + bits;
> - dst = (uint8_t *)dst + bits;
> -
> - /**
> - * Copy whatever left
> - */
> - goto COPY_BLOCK_128_BACK31;
> -}
> -
> -#else /* RTE_MACHINE_CPUFLAG */
> -
> -#define ALIGNMENT_MASK 0x0F
> -
> -/**
> - * SSE & AVX implementation below
> - */
> -
> -/**
> - * Copy 16 bytes from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov16(uint8_t *dst, const uint8_t *src)
> -{
> - __m128i xmm0;
> -
> - xmm0 = _mm_loadu_si128((const __m128i *)(const __m128i *)src);
> - _mm_storeu_si128((__m128i *)dst, xmm0);
> -}
> -
> -/**
> - * Copy 32 bytes from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov32(uint8_t *dst, const uint8_t *src)
> -{
> - rte_mov16((uint8_t *)dst + 0 * 16, (const uint8_t *)src + 0 * 16);
> - rte_mov16((uint8_t *)dst + 1 * 16, (const uint8_t *)src + 1 * 16);
> -}
> -
> -/**
> - * Copy 64 bytes from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov64(uint8_t *dst, const uint8_t *src)
> -{
> - rte_mov16((uint8_t *)dst + 0 * 16, (const uint8_t *)src + 0 * 16);
> - rte_mov16((uint8_t *)dst + 1 * 16, (const uint8_t *)src + 1 * 16);
> - rte_mov16((uint8_t *)dst + 2 * 16, (const uint8_t *)src + 2 * 16);
> - rte_mov16((uint8_t *)dst + 3 * 16, (const uint8_t *)src + 3 * 16);
> -}
> -
> -/**
> - * Copy 128 bytes from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov128(uint8_t *dst, const uint8_t *src)
> -{
> - rte_mov16((uint8_t *)dst + 0 * 16, (const uint8_t *)src + 0 * 16);
> - rte_mov16((uint8_t *)dst + 1 * 16, (const uint8_t *)src + 1 * 16);
> - rte_mov16((uint8_t *)dst + 2 * 16, (const uint8_t *)src + 2 * 16);
> - rte_mov16((uint8_t *)dst + 3 * 16, (const uint8_t *)src + 3 * 16);
> - rte_mov16((uint8_t *)dst + 4 * 16, (const uint8_t *)src + 4 * 16);
> - rte_mov16((uint8_t *)dst + 5 * 16, (const uint8_t *)src + 5 * 16);
> - rte_mov16((uint8_t *)dst + 6 * 16, (const uint8_t *)src + 6 * 16);
> - rte_mov16((uint8_t *)dst + 7 * 16, (const uint8_t *)src + 7 * 16);
> -}
> -
> -/**
> - * Copy 256 bytes from one location to another,
> - * locations should not overlap.
> - */
> -static inline void
> -rte_mov256(uint8_t *dst, const uint8_t *src)
> -{
> - rte_mov16((uint8_t *)dst + 0 * 16, (const uint8_t *)src + 0 * 16);
> - rte_mov16((uint8_t *)dst + 1 * 16, (const uint8_t *)src + 1 * 16);
> - rte_mov16((uint8_t *)dst + 2 * 16, (const uint8_t *)src + 2 * 16);
> - rte_mov16((uint8_t *)dst + 3 * 16, (const uint8_t *)src + 3 * 16);
> - rte_mov16((uint8_t *)dst + 4 * 16, (const uint8_t *)src + 4 * 16);
> - rte_mov16((uint8_t *)dst + 5 * 16, (const uint8_t *)src + 5 * 16);
> - rte_mov16((uint8_t *)dst + 6 * 16, (const uint8_t *)src + 6 * 16);
> - rte_mov16((uint8_t *)dst + 7 * 16, (const uint8_t *)src + 7 * 16);
> - rte_mov16((uint8_t *)dst + 8 * 16, (const uint8_t *)src + 8 * 16);
> - rte_mov16((uint8_t *)dst + 9 * 16, (const uint8_t *)src + 9 * 16);
> - rte_mov16((uint8_t *)dst + 10 * 16, (const uint8_t *)src + 10 * 16);
> - rte_mov16((uint8_t *)dst + 11 * 16, (const uint8_t *)src + 11 * 16);
> - rte_mov16((uint8_t *)dst + 12 * 16, (const uint8_t *)src + 12 * 16);
> - rte_mov16((uint8_t *)dst + 13 * 16, (const uint8_t *)src + 13 * 16);
> - rte_mov16((uint8_t *)dst + 14 * 16, (const uint8_t *)src + 14 * 16);
> - rte_mov16((uint8_t *)dst + 15 * 16, (const uint8_t *)src + 15 * 16);
> -}
> -
> -/**
> - * Macro for copying unaligned block from one location to another with
> constant load offset,
> - * 47 bytes leftover maximum,
> - * locations should not overlap.
> - * Requirements:
> - * - Store is aligned
> - * - Load offset is <offset>, which must be immediate value within [1, 15]
> - * - For <src>, make sure <offset> bit backwards & <16 - offset> bit
> forwards are available for loading
> - * - <dst>, <src>, <len> must be variables
> - * - __m128i <xmm0> ~ <xmm8> must be pre-defined
> - */
> -#define MOVEUNALIGNED_LEFT47_IMM(dst, src, len, offset)
> \
> -__extension__ ({
> \
> - int tmp;
> \
> - while (len >= 128 + 16 - offset) {
> \
> - xmm0 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 0 * 16)); \
> - len -= 128;
> \
> - xmm1 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 1 * 16)); \
> - xmm2 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 2 * 16)); \
> - xmm3 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 3 * 16)); \
> - xmm4 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 4 * 16)); \
> - xmm5 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 5 * 16)); \
> - xmm6 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 6 * 16)); \
> - xmm7 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 7 * 16)); \
> - xmm8 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 8 * 16)); \
> - src = (const uint8_t *)src + 128;
> \
> - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 0 * 16),
> _mm_alignr_epi8(xmm1, xmm0, offset)); \
> - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 1 * 16),
> _mm_alignr_epi8(xmm2, xmm1, offset)); \
> - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 2 * 16),
> _mm_alignr_epi8(xmm3, xmm2, offset)); \
> - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 3 * 16),
> _mm_alignr_epi8(xmm4, xmm3, offset)); \
> - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 4 * 16),
> _mm_alignr_epi8(xmm5, xmm4, offset)); \
> - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 5 * 16),
> _mm_alignr_epi8(xmm6, xmm5, offset)); \
> - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 6 * 16),
> _mm_alignr_epi8(xmm7, xmm6, offset)); \
> - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 7 * 16),
> _mm_alignr_epi8(xmm8, xmm7, offset)); \
> - dst = (uint8_t *)dst + 128;
> \
> - }
> \
> - tmp = len;
> \
> - len = ((len - 16 + offset) & 127) + 16 - offset;
> \
> - tmp -= len;
> \
> - src = (const uint8_t *)src + tmp;
> \
> - dst = (uint8_t *)dst + tmp;
> \
> - if (len >= 32 + 16 - offset) {
> \
> - while (len >= 32 + 16 - offset) {
> \
> - xmm0 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 0 * 16)); \
> - len -= 32;
> \
> - xmm1 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 1 * 16)); \
> - xmm2 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 2 * 16)); \
> - src = (const uint8_t *)src + 32;
> \
> - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 0 * 16),
> _mm_alignr_epi8(xmm1, xmm0, offset)); \
> - _mm_storeu_si128((__m128i *)((uint8_t *)dst + 1 * 16),
> _mm_alignr_epi8(xmm2, xmm1, offset)); \
> - dst = (uint8_t *)dst + 32;
> \
> - }
> \
> - tmp = len;
> \
> - len = ((len - 16 + offset) & 31) + 16 - offset;
> \
> - tmp -= len;
> \
> - src = (const uint8_t *)src + tmp;
> \
> - dst = (uint8_t *)dst + tmp;
> \
> - }
> \
> -})
> -
> -/**
> - * Macro for copying unaligned block from one location to another,
> - * 47 bytes leftover maximum,
> - * locations should not overlap.
> - * Use switch here because the aligning instruction requires immediate value
> for shift count.
> - * Requirements:
> - * - Store is aligned
> - * - Load offset is <offset>, which must be within [1, 15]
> - * - For <src>, make sure <offset> bit backwards & <16 - offset> bit
> forwards are available for loading
> - * - <dst>, <src>, <len> must be variables
> - * - __m128i <xmm0> ~ <xmm8> used in MOVEUNALIGNED_LEFT47_IMM must be
> pre-defined
> - */
> -#define MOVEUNALIGNED_LEFT47(dst, src, len, offset) \
> -__extension__ ({ \
> - switch (offset) { \
> - case 0x01: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x01); break; \
> - case 0x02: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x02); break; \
> - case 0x03: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x03); break; \
> - case 0x04: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x04); break; \
> - case 0x05: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x05); break; \
> - case 0x06: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x06); break; \
> - case 0x07: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x07); break; \
> - case 0x08: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x08); break; \
> - case 0x09: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x09); break; \
> - case 0x0A: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0A); break; \
> - case 0x0B: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0B); break; \
> - case 0x0C: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0C); break; \
> - case 0x0D: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0D); break; \
> - case 0x0E: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0E); break; \
> - case 0x0F: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0F); break; \
> - default:; \
> - } \
> -})
> -
> -static inline void *
> -rte_memcpy_generic(void *dst, const void *src, size_t n)
> -{
> - __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8;
> - uintptr_t dstu = (uintptr_t)dst;
> - uintptr_t srcu = (uintptr_t)src;
> - void *ret = dst;
> - size_t dstofss;
> - size_t srcofs;
> -
> - /**
> - * Copy less than 16 bytes
> - */
> - if (n < 16) {
> - if (n & 0x01) {
> - *(uint8_t *)dstu = *(const uint8_t *)srcu;
> - srcu = (uintptr_t)((const uint8_t *)srcu + 1);
> - dstu = (uintptr_t)((uint8_t *)dstu + 1);
> - }
> - if (n & 0x02) {
> - *(uint16_t *)dstu = *(const uint16_t *)srcu;
> - srcu = (uintptr_t)((const uint16_t *)srcu + 1);
> - dstu = (uintptr_t)((uint16_t *)dstu + 1);
> - }
> - if (n & 0x04) {
> - *(uint32_t *)dstu = *(const uint32_t *)srcu;
> - srcu = (uintptr_t)((const uint32_t *)srcu + 1);
> - dstu = (uintptr_t)((uint32_t *)dstu + 1);
> - }
> - if (n & 0x08) {
> - *(uint64_t *)dstu = *(const uint64_t *)srcu;
> - }
> - return ret;
> - }
> -
> - /**
> - * Fast way when copy size doesn't exceed 512 bytes
> - */
> - if (n <= 32) {
> - rte_mov16((uint8_t *)dst, (const uint8_t *)src);
> - rte_mov16((uint8_t *)dst - 16 + n, (const uint8_t *)src - 16 +
> n);
> - return ret;
> - }
> - if (n <= 48) {
> - rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> - rte_mov16((uint8_t *)dst - 16 + n, (const uint8_t *)src - 16 +
> n);
> - return ret;
> - }
> - if (n <= 64) {
> - rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> - rte_mov16((uint8_t *)dst + 32, (const uint8_t *)src + 32);
> - rte_mov16((uint8_t *)dst - 16 + n, (const uint8_t *)src - 16 +
> n);
> - return ret;
> - }
> - if (n <= 128) {
> - goto COPY_BLOCK_128_BACK15;
> - }
> - if (n <= 512) {
> - if (n >= 256) {
> - n -= 256;
> - rte_mov128((uint8_t *)dst, (const uint8_t *)src);
> - rte_mov128((uint8_t *)dst + 128, (const uint8_t *)src +
> 128);
> - src = (const uint8_t *)src + 256;
> - dst = (uint8_t *)dst + 256;
> - }
> -COPY_BLOCK_255_BACK15:
> - if (n >= 128) {
> - n -= 128;
> - rte_mov128((uint8_t *)dst, (const uint8_t *)src);
> - src = (const uint8_t *)src + 128;
> - dst = (uint8_t *)dst + 128;
> - }
> -COPY_BLOCK_128_BACK15:
> - if (n >= 64) {
> - n -= 64;
> - rte_mov64((uint8_t *)dst, (const uint8_t *)src);
> - src = (const uint8_t *)src + 64;
> - dst = (uint8_t *)dst + 64;
> - }
> -COPY_BLOCK_64_BACK15:
> - if (n >= 32) {
> - n -= 32;
> - rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> - src = (const uint8_t *)src + 32;
> - dst = (uint8_t *)dst + 32;
> - }
> - if (n > 16) {
> - rte_mov16((uint8_t *)dst, (const uint8_t *)src);
> - rte_mov16((uint8_t *)dst - 16 + n, (const uint8_t *)src
> - 16 + n);
> - return ret;
> - }
> - if (n > 0) {
> - rte_mov16((uint8_t *)dst - 16 + n, (const uint8_t *)src
> - 16 + n);
> - }
> - return ret;
> - }
> -
> - /**
> - * Make store aligned when copy size exceeds 512 bytes,
> - * and make sure the first 15 bytes are copied, because
> - * unaligned copy functions require up to 15 bytes
> - * backwards access.
> - */
> - dstofss = (uintptr_t)dst & 0x0F;
> - if (dstofss > 0) {
> - dstofss = 16 - dstofss + 16;
> - n -= dstofss;
> - rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> - src = (const uint8_t *)src + dstofss;
> - dst = (uint8_t *)dst + dstofss;
> - }
> - srcofs = ((uintptr_t)src & 0x0F);
> -
> - /**
> - * For aligned copy
> - */
> - if (srcofs == 0) {
> - /**
> - * Copy 256-byte blocks
> - */
> - for (; n >= 256; n -= 256) {
> - rte_mov256((uint8_t *)dst, (const uint8_t *)src);
> - dst = (uint8_t *)dst + 256;
> - src = (const uint8_t *)src + 256;
> - }
> -
> - /**
> - * Copy whatever left
> - */
> - goto COPY_BLOCK_255_BACK15;
> - }
> -
> - /**
> - * For copy with unaligned load
> - */
> - MOVEUNALIGNED_LEFT47(dst, src, n, srcofs);
> -
> - /**
> - * Copy whatever left
> - */
> - goto COPY_BLOCK_64_BACK15;
> -}
> -
> -#endif /* RTE_MACHINE_CPUFLAG */
> -
> -static inline void *
> -rte_memcpy_aligned(void *dst, const void *src, size_t n)
> -{
> - void *ret = dst;
> -
> - /* Copy size <= 16 bytes */
> - if (n < 16) {
> - if (n & 0x01) {
> - *(uint8_t *)dst = *(const uint8_t *)src;
> - src = (const uint8_t *)src + 1;
> - dst = (uint8_t *)dst + 1;
> - }
> - if (n & 0x02) {
> - *(uint16_t *)dst = *(const uint16_t *)src;
> - src = (const uint16_t *)src + 1;
> - dst = (uint16_t *)dst + 1;
> - }
> - if (n & 0x04) {
> - *(uint32_t *)dst = *(const uint32_t *)src;
> - src = (const uint32_t *)src + 1;
> - dst = (uint32_t *)dst + 1;
> - }
> - if (n & 0x08)
> - *(uint64_t *)dst = *(const uint64_t *)src;
> -
> - return ret;
> - }
> -
> - /* Copy 16 <= size <= 32 bytes */
> - if (n <= 32) {
> - rte_mov16((uint8_t *)dst, (const uint8_t *)src);
> - rte_mov16((uint8_t *)dst - 16 + n,
> - (const uint8_t *)src - 16 + n);
> -
> - return ret;
> - }
> -
> - /* Copy 32 < size <= 64 bytes */
> - if (n <= 64) {
> - rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> - rte_mov32((uint8_t *)dst - 32 + n,
> - (const uint8_t *)src - 32 + n);
> -
> - return ret;
> - }
> -
> - /* Copy 64 bytes blocks */
> - for (; n >= 64; n -= 64) {
> - rte_mov64((uint8_t *)dst, (const uint8_t *)src);
> - dst = (uint8_t *)dst + 64;
> - src = (const uint8_t *)src + 64;
> - }
> -
> - /* Copy whatever left */
> - rte_mov64((uint8_t *)dst - 64 + n,
> - (const uint8_t *)src - 64 + n);
> -
> - return ret;
> -}
> +extern void *
> +rte_memcpy_sse(void *dst, const void *src, size_t n);
>
> static inline void *
> rte_memcpy(void *dst, const void *src, size_t n)
> {
> - if (!(((uintptr_t)dst | (uintptr_t)src) & ALIGNMENT_MASK))
> - return rte_memcpy_aligned(dst, src, n);
> + if (n <= RTE_X86_MEMCPY_THRESH)
> + return rte_memcpy_internal(dst, src, n);
> else
> - return rte_memcpy_generic(dst, src, n);
> + return (*rte_memcpy_ptr)(dst, src, n);
> }
>
> #ifdef __cplusplus
> diff --git a/lib/librte_eal/common/include/arch/x86/rte_memcpy_avx2.c
> b/lib/librte_eal/common/include/arch/x86/rte_memcpy_avx2.c
> new file mode 100644
> index 0000000..c83351a
> --- /dev/null
> +++ b/lib/librte_eal/common/include/arch/x86/rte_memcpy_avx2.c
> @@ -0,0 +1,291 @@
> +/*-
> + * BSD LICENSE
> + *
> + * Copyright(c) 2010-2017 Intel Corporation. All rights reserved.
> + * All rights reserved.
> + *
> + * Redistribution and use in source and binary forms, with or without
> + * modification, are permitted provided that the following conditions
> + * are met:
> + *
> + * * Redistributions of source code must retain the above copyright
> + * notice, this list of conditions and the following disclaimer.
> + * * Redistributions in binary form must reproduce the above copyright
> + * notice, this list of conditions and the following disclaimer in
> + * the documentation and/or other materials provided with the
> + * distribution.
> + * * Neither the name of Intel Corporation nor the names of its
> + * contributors may be used to endorse or promote products derived
> + * from this software without specific prior written permission.
> + *
> + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
> + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
> + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
> + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
> + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
> + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
> + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> + */
> +
> +#include <rte_memcpy.h>
> +
> +#ifndef CC_SUPPORT_AVX2
> +#error CC_SUPPORT_AVX2 not defined
> +#endif
> +
> +void *
> +rte_memcpy_avx2(void *dst, const void *src, size_t n)
> +{
> + if (!(((uintptr_t)dst | (uintptr_t)src) & 0x1F)) {
> + void *ret = dst;
> +
> + /* Copy size <= 16 bytes */
> + if (n < 16) {
> + if (n & 0x01) {
> + *(uint8_t *)dst = *(const uint8_t *)src;
> + src = (const uint8_t *)src + 1;
> + dst = (uint8_t *)dst + 1;
> + }
> + if (n & 0x02) {
> + *(uint16_t *)dst = *(const uint16_t *)src;
> + src = (const uint16_t *)src + 1;
> + dst = (uint16_t *)dst + 1;
> + }
> + if (n & 0x04) {
> + *(uint32_t *)dst = *(const uint32_t *)src;
> + src = (const uint32_t *)src + 1;
> + dst = (uint32_t *)dst + 1;
> + }
> + if (n & 0x08)
> + *(uint64_t *)dst = *(const uint64_t *)src;
> +
> + return ret;
> + }
> +
> + /* Copy 16 <= size <= 32 bytes */
> + if (n <= 32) {
> + __m128i xmm0, xmm1;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 16 + n));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst - 16 + n), xmm1);
> +
> + return ret;
> + }
> +
> + /* Copy 32 < size <= 64 bytes */
> + if (n <= 64) {
> + __m256i ymm0, ymm1;
> + ymm0 = _mm256_loadu_si256((const __m256i *)src);
> + ymm1 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src - 32 + n));
> + _mm256_storeu_si256((__m256i *)dst, ymm0);
> + _mm256_storeu_si256((__m256i *)
> + ((uint8_t *)dst - 32 + n), ymm1);
> +
> + return ret;
> + }
> +
> + /* Copy 64 bytes blocks */
> + for (; n >= 64; n -= 64) {
> + __m256i ymm0, ymm1;
> + ymm0 = _mm256_loadu_si256((const __m256i *)src);
> + ymm1 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src + 32));
> + _mm256_storeu_si256((__m256i *)dst, ymm0);
> + _mm256_storeu_si256((__m256i *)
> + ((uint8_t *)dst + 32), ymm1);
> + dst = (uint8_t *)dst + 64;
> + src = (const uint8_t *)src + 64;
> + }
> +
> + /* Copy whatever left */
> + __m256i ymm0, ymm1;
> + ymm0 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src - 64 + n));
> + ymm1 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src - 32 + n));
> + _mm256_storeu_si256((__m256i *)((uint8_t *)dst - 64 + n), ymm0);
> + _mm256_storeu_si256((__m256i *)((uint8_t *)dst - 32 + n), ymm1);
> +
> + return ret;
> + } else {
> + uintptr_t dstu = (uintptr_t)dst;
> + uintptr_t srcu = (uintptr_t)src;
> + void *ret = dst;
> + size_t dstofss;
> + size_t bits;
> +
> + /**
> + * Copy less than 16 bytes
> + */
> + if (n < 16) {
> + if (n & 0x01) {
> + *(uint8_t *)dstu = *(const uint8_t *)srcu;
> + srcu = (uintptr_t)((const uint8_t *)srcu + 1);
> + dstu = (uintptr_t)((uint8_t *)dstu + 1);
> + }
> + if (n & 0x02) {
> + *(uint16_t *)dstu = *(const uint16_t *)srcu;
> + srcu = (uintptr_t)((const uint16_t *)srcu + 1);
> + dstu = (uintptr_t)((uint16_t *)dstu + 1);
> + }
> + if (n & 0x04) {
> + *(uint32_t *)dstu = *(const uint32_t *)srcu;
> + srcu = (uintptr_t)((const uint32_t *)srcu + 1);
> + dstu = (uintptr_t)((uint32_t *)dstu + 1);
> + }
> + if (n & 0x08)
> + *(uint64_t *)dstu = *(const uint64_t *)srcu;
> + return ret;
> + }
> +
> + /**
> + * Fast way when copy size doesn't exceed 256 bytes
> + */
> + if (n <= 32) {
> + __m128i xmm0, xmm1;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 16 + n));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst - 16 + n), xmm1);
> + return ret;
> + }
> + if (n <= 48) {
> + __m128i xmm0, xmm1, xmm2;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 16));
> + xmm2 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 16 + n));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 16), xmm1);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst - 16 + n), xmm2);
> + return ret;
> + }
> + if (n <= 64) {
> + __m256i ymm0, ymm1;
> + ymm0 = _mm256_loadu_si256((const __m256i *)src);
> + ymm1 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src - 32 + n));
> + _mm256_storeu_si256((__m256i *)dst, ymm0);
> + _mm256_storeu_si256((__m256i *)
> + ((uint8_t *)dst - 32 + n), ymm1);
> + return ret;
> + }
> + if (n <= 256) {
> + if (n >= 128) {
> + n -= 128;
> + __m256i ymm0, ymm1, ymm2, ymm3;
> + ymm0 = _mm256_loadu_si256((const __m256i *)src);
> + ymm1 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src + 32));
> + ymm2 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src + 2*32));
> + ymm3 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src + 3*32));
> + _mm256_storeu_si256((__m256i *)dst, ymm0);
> + _mm256_storeu_si256((__m256i *)
> + ((uint8_t *)dst + 32), ymm1);
> + _mm256_storeu_si256((__m256i *)
> + ((uint8_t *)dst + 2*32), ymm2);
> + _mm256_storeu_si256((__m256i *)
> + ((uint8_t *)dst + 3*32), ymm3);
> + src = (const uint8_t *)src + 128;
> + dst = (uint8_t *)dst + 128;
> + }
> +COPY_BLOCK_128_BACK31:
> + if (n >= 64) {
> + n -= 64;
> + __m256i ymm0, ymm1;
> + ymm0 = _mm256_loadu_si256((const __m256i *)src);
> + ymm1 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src + 32));
> + _mm256_storeu_si256((__m256i *)dst, ymm0);
> + _mm256_storeu_si256((__m256i *)
> + ((uint8_t *)dst + 32), ymm1);
> + src = (const uint8_t *)src + 64;
> + dst = (uint8_t *)dst + 64;
> + }
> + if (n > 32) {
> + __m256i ymm0, ymm1;
> + ymm0 = _mm256_loadu_si256((const __m256i *)src);
> + ymm1 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src - 32 + n));
> + _mm256_storeu_si256((__m256i *)dst, ymm0);
> + _mm256_storeu_si256((__m256i *)
> + ((uint8_t *)dst - 32 + n), ymm1);
> + return ret;
> + }
> + if (n > 0) {
> + __m256i ymm0;
> + ymm0 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src - 32 + n));
> + _mm256_storeu_si256((__m256i *)
> + ((uint8_t *)dst - 32 + n), ymm0);
> + }
> + return ret;
> + }
> +
> + /**
> + * Make store aligned when copy size exceeds 256 bytes
> + */
> + dstofss = (uintptr_t)dst & 0x1F;
> + if (dstofss > 0) {
> + dstofss = 32 - dstofss;
> + n -= dstofss;
> + __m256i ymm0;
> + ymm0 = _mm256_loadu_si256((const __m256i *)src);
> + _mm256_storeu_si256((__m256i *)dst, ymm0);
> + src = (const uint8_t *)src + dstofss;
> + dst = (uint8_t *)dst + dstofss;
> + }
> +
> + /**
> + * Copy 128-byte blocks
> + */
> + __m256i ymm0, ymm1, ymm2, ymm3;
> +
> + while (n >= 128) {
> + ymm0 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src + 0 * 32));
> + n -= 128;
> + ymm1 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src + 1 * 32));
> + ymm2 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src + 2 * 32));
> + ymm3 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src + 3 * 32));
> + src = (const uint8_t *)src + 128;
> + _mm256_storeu_si256((__m256i *)
> + ((uint8_t *)dst + 0 * 32), ymm0);
> + _mm256_storeu_si256((__m256i *)
> + ((uint8_t *)dst + 1 * 32), ymm1);
> + _mm256_storeu_si256((__m256i *)
> + ((uint8_t *)dst + 2 * 32), ymm2);
> + _mm256_storeu_si256((__m256i *)
> + ((uint8_t *)dst + 3 * 32), ymm3);
> + dst = (uint8_t *)dst + 128;
> + }
> + bits = n;
> + n = n & 127;
> + bits -= n;
> + src = (const uint8_t *)src + bits;
> + dst = (uint8_t *)dst + bits;
> +
> + /**
> + * Copy whatever left
> + */
> + goto COPY_BLOCK_128_BACK31;
> + }
> +}
> diff --git a/lib/librte_eal/common/include/arch/x86/rte_memcpy_avx512f.c
> b/lib/librte_eal/common/include/arch/x86/rte_memcpy_avx512f.c
> new file mode 100644
> index 0000000..c8a9d20
> --- /dev/null
> +++ b/lib/librte_eal/common/include/arch/x86/rte_memcpy_avx512f.c
> @@ -0,0 +1,316 @@
> +/*-
> + * BSD LICENSE
> + *
> + * Copyright(c) 2010-2017 Intel Corporation. All rights reserved.
> + * All rights reserved.
> + *
> + * Redistribution and use in source and binary forms, with or without
> + * modification, are permitted provided that the following conditions
> + * are met:
> + *
> + * * Redistributions of source code must retain the above copyright
> + * notice, this list of conditions and the following disclaimer.
> + * * Redistributions in binary form must reproduce the above copyright
> + * notice, this list of conditions and the following disclaimer in
> + * the documentation and/or other materials provided with the
> + * distribution.
> + * * Neither the name of Intel Corporation nor the names of its
> + * contributors may be used to endorse or promote products derived
> + * from this software without specific prior written permission.
> + *
> + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
> + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
> + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
> + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
> + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
> + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
> + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> + */
> +
> +#include <rte_memcpy.h>
> +
> +#ifndef CC_SUPPORT_AVX512F
> +#error CC_SUPPORT_AVX512F not defined
> +#endif
> +
> +void *
> +rte_memcpy_avx512f(void *dst, const void *src, size_t n)
> +{
> + if (!(((uintptr_t)dst | (uintptr_t)src) & 0x3F)) {
> + void *ret = dst;
> +
> + /* Copy size <= 16 bytes */
> + if (n < 16) {
> + if (n & 0x01) {
> + *(uint8_t *)dst = *(const uint8_t *)src;
> + src = (const uint8_t *)src + 1;
> + dst = (uint8_t *)dst + 1;
> + }
> + if (n & 0x02) {
> + *(uint16_t *)dst = *(const uint16_t *)src;
> + src = (const uint16_t *)src + 1;
> + dst = (uint16_t *)dst + 1;
> + }
> + if (n & 0x04) {
> + *(uint32_t *)dst = *(const uint32_t *)src;
> + src = (const uint32_t *)src + 1;
> + dst = (uint32_t *)dst + 1;
> + }
> + if (n & 0x08)
> + *(uint64_t *)dst = *(const uint64_t *)src;
> +
> + return ret;
> + }
> +
> + /* Copy 16 <= size <= 32 bytes */
> + if (n <= 32) {
> + __m128i xmm0, xmm1;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 16 + n));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst - 16 + n), xmm1);
> +
> + return ret;
> + }
> +
> + /* Copy 32 < size <= 64 bytes */
> + if (n <= 64) {
> + __m256i ymm0, ymm1;
> + ymm0 = _mm256_loadu_si256((const __m256i *)src);
> + ymm1 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src - 32 + n));
> + _mm256_storeu_si256((__m256i *)dst, ymm0);
> + _mm256_storeu_si256((__m256i *)
> + ((uint8_t *)dst - 32 + n), ymm1);
> +
> + return ret;
> + }
> +
> + /* Copy 64 bytes blocks */
> + for (; n >= 64; n -= 64) {
> + __m512i zmm0;
> + zmm0 = _mm512_loadu_si512((const void *)src);
> + _mm512_storeu_si512((void *)dst, zmm0);
> + dst = (uint8_t *)dst + 64;
> + src = (const uint8_t *)src + 64;
> + }
> +
> + /* Copy whatever left */
> + __m512i zmm0;
> + zmm0 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src - 64 + n));
> + _mm512_storeu_si512((void *)((uint8_t *)dst - 64 + n), zmm0);
> +
> + return ret;
> + } else {
> + uintptr_t dstu = (uintptr_t)dst;
> + uintptr_t srcu = (uintptr_t)src;
> + void *ret = dst;
> + size_t dstofss;
> + size_t bits;
> +
> + /**
> + * Copy less than 16 bytes
> + */
> + if (n < 16) {
> + if (n & 0x01) {
> + *(uint8_t *)dstu = *(const uint8_t *)srcu;
> + srcu = (uintptr_t)((const uint8_t *)srcu + 1);
> + dstu = (uintptr_t)((uint8_t *)dstu + 1);
> + }
> + if (n & 0x02) {
> + *(uint16_t *)dstu = *(const uint16_t *)srcu;
> + srcu = (uintptr_t)((const uint16_t *)srcu + 1);
> + dstu = (uintptr_t)((uint16_t *)dstu + 1);
> + }
> + if (n & 0x04) {
> + *(uint32_t *)dstu = *(const uint32_t *)srcu;
> + srcu = (uintptr_t)((const uint32_t *)srcu + 1);
> + dstu = (uintptr_t)((uint32_t *)dstu + 1);
> + }
> + if (n & 0x08)
> + *(uint64_t *)dstu = *(const uint64_t *)srcu;
> + return ret;
> + }
> +
> + /**
> + * Fast way when copy size doesn't exceed 512 bytes
> + */
> + if (n <= 32) {
> + __m128i xmm0, xmm1;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 16 + n));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst - 16 + n), xmm1);
> + return ret;
> + }
> + if (n <= 64) {
> + __m256i ymm0, ymm1;
> + ymm0 = _mm256_loadu_si256((const __m256i *)src);
> + ymm1 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src - 32 + n));
> + _mm256_storeu_si256((__m256i *)dst, ymm0);
> + _mm256_storeu_si256((__m256i *)
> + ((uint8_t *)dst - 32 + n), ymm1);
> + return ret;
> + }
> + if (n <= 512) {
> + if (n >= 256) {
> + n -= 256;
> + __m512i zmm0, zmm1, zmm2, zmm3;
> + zmm0 = _mm512_loadu_si512((const void *)src);
> + zmm1 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src + 64));
> + zmm2 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src + 2*64));
> + zmm3 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src + 3*64));
> + _mm512_storeu_si512((void *)dst, zmm0);
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst + 64), zmm1);
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst + 2*64), zmm2);
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst + 3*64), zmm3);
> + src = (const uint8_t *)src + 256;
> + dst = (uint8_t *)dst + 256;
> + }
> + if (n >= 128) {
> + n -= 128;
> + __m512i zmm0, zmm1;
> + zmm0 = _mm512_loadu_si512((const void *)src);
> + zmm1 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src + 64));
> + _mm512_storeu_si512((void *)dst, zmm0);
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst + 64), zmm1);
> + src = (const uint8_t *)src + 128;
> + dst = (uint8_t *)dst + 128;
> + }
> +COPY_BLOCK_128_BACK63:
> + if (n > 64) {
> + __m512i zmm0, zmm1;
> + zmm0 = _mm512_loadu_si512((const void *)src);
> + zmm1 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src - 64 + n));
> + _mm512_storeu_si512((void *)dst, zmm0);
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst - 64 + n), zmm1);
> + return ret;
> + }
> + if (n > 0) {
> + __m512i zmm0;
> + zmm0 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src - 64 + n));
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst - 64 + n), zmm0);
> + }
> + return ret;
> + }
> +
> + /**
> + * Make store aligned when copy size exceeds 512 bytes
> + */
> + dstofss = ((uintptr_t)dst & 0x3F);
> + if (dstofss > 0) {
> + dstofss = 64 - dstofss;
> + n -= dstofss;
> + __m512i zmm0;
> + zmm0 = _mm512_loadu_si512((const void *)src);
> + _mm512_storeu_si512((void *)dst, zmm0);
> + src = (const uint8_t *)src + dstofss;
> + dst = (uint8_t *)dst + dstofss;
> + }
> +
> + /**
> + * Copy 512-byte blocks.
> + * Use copy block function for better instruction order control,
> + * which is important when load is unaligned.
> + */
> + __m512i zmm0, zmm1, zmm2, zmm3, zmm4, zmm5, zmm6, zmm7;
> +
> + while (n >= 512) {
> + zmm0 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src + 0 * 64));
> + n -= 512;
> + zmm1 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src + 1 * 64));
> + zmm2 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src + 2 * 64));
> + zmm3 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src + 3 * 64));
> + zmm4 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src + 4 * 64));
> + zmm5 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src + 5 * 64));
> + zmm6 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src + 6 * 64));
> + zmm7 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src + 7 * 64));
> + src = (const uint8_t *)src + 512;
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst + 0 * 64), zmm0);
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst + 1 * 64), zmm1);
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst + 2 * 64), zmm2);
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst + 3 * 64), zmm3);
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst + 4 * 64), zmm4);
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst + 5 * 64), zmm5);
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst + 6 * 64), zmm6);
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst + 7 * 64), zmm7);
> + dst = (uint8_t *)dst + 512;
> + }
> + bits = n;
> + n = n & 511;
> + bits -= n;
> + src = (const uint8_t *)src + bits;
> + dst = (uint8_t *)dst + bits;
> +
> + /**
> + * Copy 128-byte blocks.
> + * Use copy block function for better instruction order control,
> + * which is important when load is unaligned.
> + */
> + if (n >= 128) {
> + __m512i zmm0, zmm1;
> +
> + while (n >= 128) {
> + zmm0 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src + 0 * 64));
> + n -= 128;
> + zmm1 = _mm512_loadu_si512((const void *)
> + ((const uint8_t *)src + 1 * 64));
> + src = (const uint8_t *)src + 128;
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst + 0 * 64), zmm0);
> + _mm512_storeu_si512((void *)
> + ((uint8_t *)dst + 1 * 64), zmm1);
> + dst = (uint8_t *)dst + 128;
> + }
> + bits = n;
> + n = n & 127;
> + bits -= n;
> + src = (const uint8_t *)src + bits;
> + dst = (uint8_t *)dst + bits;
> + }
> +
> + /**
> + * Copy whatever left
> + */
> + goto COPY_BLOCK_128_BACK63;
> + }
> +}
> diff --git a/lib/librte_eal/common/include/arch/x86/rte_memcpy_internal.h
> b/lib/librte_eal/common/include/arch/x86/rte_memcpy_internal.h
> new file mode 100644
> index 0000000..d17fb5b
> --- /dev/null
> +++ b/lib/librte_eal/common/include/arch/x86/rte_memcpy_internal.h
> @@ -0,0 +1,909 @@
> +/*-
> + * BSD LICENSE
> + *
> + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
> + * All rights reserved.
> + *
> + * Redistribution and use in source and binary forms, with or without
> + * modification, are permitted provided that the following conditions
> + * are met:
> + *
> + * * Redistributions of source code must retain the above copyright
> + * notice, this list of conditions and the following disclaimer.
> + * * Redistributions in binary form must reproduce the above copyright
> + * notice, this list of conditions and the following disclaimer in
> + * the documentation and/or other materials provided with the
> + * distribution.
> + * * Neither the name of Intel Corporation nor the names of its
> + * contributors may be used to endorse or promote products derived
> + * from this software without specific prior written permission.
> + *
> + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
> + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
> + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
> + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
> + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
> + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
> + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> + */
> +
> +#ifndef _RTE_MEMCPY_INTERNAL_X86_64_H_
> +#define _RTE_MEMCPY_INTERNAL_X86_64_H_
> +
> +/**
> + * @file
> + *
> + * Functions for SSE/AVX/AVX2/AVX512 implementation of memcpy().
> + */
> +
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <string.h>
> +#include <rte_vect.h>
> +#include <rte_common.h>
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +/**
> + * Copy bytes from one location to another. The locations must not overlap.
> + *
> + * @note This is implemented as a macro, so it's address should not be taken
> + * and care is needed as parameter expressions may be evaluated multiple
> times.
> + *
> + * @param dst
> + * Pointer to the destination of the data.
> + * @param src
> + * Pointer to the source data.
> + * @param n
> + * Number of bytes to copy.
> + * @return
> + * Pointer to the destination data.
> + */
> +
> +#ifdef RTE_MACHINE_CPUFLAG_AVX512F
> +
> +#define ALIGNMENT_MASK 0x3F
> +
> +/**
> + * AVX512 implementation below
> + */
> +
> +/**
> + * Copy 16 bytes from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov16(uint8_t *dst, const uint8_t *src)
> +{
> + __m128i xmm0;
> +
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> +}
> +
> +/**
> + * Copy 32 bytes from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov32(uint8_t *dst, const uint8_t *src)
> +{
> + __m256i ymm0;
> +
> + ymm0 = _mm256_loadu_si256((const __m256i *)src);
> + _mm256_storeu_si256((__m256i *)dst, ymm0);
> +}
> +
> +/**
> + * Copy 64 bytes from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov64(uint8_t *dst, const uint8_t *src)
> +{
> + __m512i zmm0;
> +
> + zmm0 = _mm512_loadu_si512((const void *)src);
> + _mm512_storeu_si512((void *)dst, zmm0);
> +}
> +
> +/**
> + * Copy 128 bytes from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov128(uint8_t *dst, const uint8_t *src)
> +{
> + rte_mov64(dst + 0 * 64, src + 0 * 64);
> + rte_mov64(dst + 1 * 64, src + 1 * 64);
> +}
> +
> +/**
> + * Copy 256 bytes from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov256(uint8_t *dst, const uint8_t *src)
> +{
> + rte_mov64(dst + 0 * 64, src + 0 * 64);
> + rte_mov64(dst + 1 * 64, src + 1 * 64);
> + rte_mov64(dst + 2 * 64, src + 2 * 64);
> + rte_mov64(dst + 3 * 64, src + 3 * 64);
> +}
> +
> +/**
> + * Copy 128-byte blocks from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov128blocks(uint8_t *dst, const uint8_t *src, size_t n)
> +{
> + __m512i zmm0, zmm1;
> +
> + while (n >= 128) {
> + zmm0 = _mm512_loadu_si512((const void *)(src + 0 * 64));
> + n -= 128;
> + zmm1 = _mm512_loadu_si512((const void *)(src + 1 * 64));
> + src = src + 128;
> + _mm512_storeu_si512((void *)(dst + 0 * 64), zmm0);
> + _mm512_storeu_si512((void *)(dst + 1 * 64), zmm1);
> + dst = dst + 128;
> + }
> +}
> +
> +/**
> + * Copy 512-byte blocks from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov512blocks(uint8_t *dst, const uint8_t *src, size_t n)
> +{
> + __m512i zmm0, zmm1, zmm2, zmm3, zmm4, zmm5, zmm6, zmm7;
> +
> + while (n >= 512) {
> + zmm0 = _mm512_loadu_si512((const void *)(src + 0 * 64));
> + n -= 512;
> + zmm1 = _mm512_loadu_si512((const void *)(src + 1 * 64));
> + zmm2 = _mm512_loadu_si512((const void *)(src + 2 * 64));
> + zmm3 = _mm512_loadu_si512((const void *)(src + 3 * 64));
> + zmm4 = _mm512_loadu_si512((const void *)(src + 4 * 64));
> + zmm5 = _mm512_loadu_si512((const void *)(src + 5 * 64));
> + zmm6 = _mm512_loadu_si512((const void *)(src + 6 * 64));
> + zmm7 = _mm512_loadu_si512((const void *)(src + 7 * 64));
> + src = src + 512;
> + _mm512_storeu_si512((void *)(dst + 0 * 64), zmm0);
> + _mm512_storeu_si512((void *)(dst + 1 * 64), zmm1);
> + _mm512_storeu_si512((void *)(dst + 2 * 64), zmm2);
> + _mm512_storeu_si512((void *)(dst + 3 * 64), zmm3);
> + _mm512_storeu_si512((void *)(dst + 4 * 64), zmm4);
> + _mm512_storeu_si512((void *)(dst + 5 * 64), zmm5);
> + _mm512_storeu_si512((void *)(dst + 6 * 64), zmm6);
> + _mm512_storeu_si512((void *)(dst + 7 * 64), zmm7);
> + dst = dst + 512;
> + }
> +}
> +
> +static inline void *
> +rte_memcpy_generic(void *dst, const void *src, size_t n)
> +{
> + uintptr_t dstu = (uintptr_t)dst;
> + uintptr_t srcu = (uintptr_t)src;
> + void *ret = dst;
> + size_t dstofss;
> + size_t bits;
> +
> + /**
> + * Copy less than 16 bytes
> + */
> + if (n < 16) {
> + if (n & 0x01) {
> + *(uint8_t *)dstu = *(const uint8_t *)srcu;
> + srcu = (uintptr_t)((const uint8_t *)srcu + 1);
> + dstu = (uintptr_t)((uint8_t *)dstu + 1);
> + }
> + if (n & 0x02) {
> + *(uint16_t *)dstu = *(const uint16_t *)srcu;
> + srcu = (uintptr_t)((const uint16_t *)srcu + 1);
> + dstu = (uintptr_t)((uint16_t *)dstu + 1);
> + }
> + if (n & 0x04) {
> + *(uint32_t *)dstu = *(const uint32_t *)srcu;
> + srcu = (uintptr_t)((const uint32_t *)srcu + 1);
> + dstu = (uintptr_t)((uint32_t *)dstu + 1);
> + }
> + if (n & 0x08)
> + *(uint64_t *)dstu = *(const uint64_t *)srcu;
> + return ret;
> + }
> +
> + /**
> + * Fast way when copy size doesn't exceed 512 bytes
> + */
> + if (n <= 32) {
> + rte_mov16((uint8_t *)dst, (const uint8_t *)src);
> + rte_mov16((uint8_t *)dst - 16 + n,
> + (const uint8_t *)src - 16 + n);
> + return ret;
> + }
> + if (n <= 64) {
> + rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> + rte_mov32((uint8_t *)dst - 32 + n,
> + (const uint8_t *)src - 32 + n);
> + return ret;
> + }
> + if (n <= 512) {
> + if (n >= 256) {
> + n -= 256;
> + rte_mov256((uint8_t *)dst, (const uint8_t *)src);
> + src = (const uint8_t *)src + 256;
> + dst = (uint8_t *)dst + 256;
> + }
> + if (n >= 128) {
> + n -= 128;
> + rte_mov128((uint8_t *)dst, (const uint8_t *)src);
> + src = (const uint8_t *)src + 128;
> + dst = (uint8_t *)dst + 128;
> + }
> +COPY_BLOCK_128_BACK63:
> + if (n > 64) {
> + rte_mov64((uint8_t *)dst, (const uint8_t *)src);
> + rte_mov64((uint8_t *)dst - 64 + n,
> + (const uint8_t *)src - 64 + n);
> + return ret;
> + }
> + if (n > 0)
> + rte_mov64((uint8_t *)dst - 64 + n,
> + (const uint8_t *)src - 64 + n);
> + return ret;
> + }
> +
> + /**
> + * Make store aligned when copy size exceeds 512 bytes
> + */
> + dstofss = ((uintptr_t)dst & 0x3F);
> + if (dstofss > 0) {
> + dstofss = 64 - dstofss;
> + n -= dstofss;
> + rte_mov64((uint8_t *)dst, (const uint8_t *)src);
> + src = (const uint8_t *)src + dstofss;
> + dst = (uint8_t *)dst + dstofss;
> + }
> +
> + /**
> + * Copy 512-byte blocks.
> + * Use copy block function for better instruction order control,
> + * which is important when load is unaligned.
> + */
> + rte_mov512blocks((uint8_t *)dst, (const uint8_t *)src, n);
> + bits = n;
> + n = n & 511;
> + bits -= n;
> + src = (const uint8_t *)src + bits;
> + dst = (uint8_t *)dst + bits;
> +
> + /**
> + * Copy 128-byte blocks.
> + * Use copy block function for better instruction order control,
> + * which is important when load is unaligned.
> + */
> + if (n >= 128) {
> + rte_mov128blocks((uint8_t *)dst, (const uint8_t *)src, n);
> + bits = n;
> + n = n & 127;
> + bits -= n;
> + src = (const uint8_t *)src + bits;
> + dst = (uint8_t *)dst + bits;
> + }
> +
> + /**
> + * Copy whatever left
> + */
> + goto COPY_BLOCK_128_BACK63;
> +}
> +
> +#elif defined RTE_MACHINE_CPUFLAG_AVX2
> +
> +#define ALIGNMENT_MASK 0x1F
> +
> +/**
> + * AVX2 implementation below
> + */
> +
> +/**
> + * Copy 16 bytes from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov16(uint8_t *dst, const uint8_t *src)
> +{
> + __m128i xmm0;
> +
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> +}
> +
> +/**
> + * Copy 32 bytes from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov32(uint8_t *dst, const uint8_t *src)
> +{
> + __m256i ymm0;
> +
> + ymm0 = _mm256_loadu_si256((const __m256i *)src);
> + _mm256_storeu_si256((__m256i *)dst, ymm0);
> +}
> +
> +/**
> + * Copy 64 bytes from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov64(uint8_t *dst, const uint8_t *src)
> +{
> + rte_mov32((uint8_t *)dst + 0 * 32, (const uint8_t *)src + 0 * 32);
> + rte_mov32((uint8_t *)dst + 1 * 32, (const uint8_t *)src + 1 * 32);
> +}
> +
> +/**
> + * Copy 128 bytes from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov128(uint8_t *dst, const uint8_t *src)
> +{
> + rte_mov32((uint8_t *)dst + 0 * 32, (const uint8_t *)src + 0 * 32);
> + rte_mov32((uint8_t *)dst + 1 * 32, (const uint8_t *)src + 1 * 32);
> + rte_mov32((uint8_t *)dst + 2 * 32, (const uint8_t *)src + 2 * 32);
> + rte_mov32((uint8_t *)dst + 3 * 32, (const uint8_t *)src + 3 * 32);
> +}
> +
> +/**
> + * Copy 128-byte blocks from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov128blocks(uint8_t *dst, const uint8_t *src, size_t n)
> +{
> + __m256i ymm0, ymm1, ymm2, ymm3;
> +
> + while (n >= 128) {
> + ymm0 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src + 0 * 32));
> + n -= 128;
> + ymm1 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src + 1 * 32));
> + ymm2 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src + 2 * 32));
> + ymm3 = _mm256_loadu_si256((const __m256i *)
> + ((const uint8_t *)src + 3 * 32));
> + src = (const uint8_t *)src + 128;
> + _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 0 * 32), ymm0);
> + _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 1 * 32), ymm1);
> + _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 2 * 32), ymm2);
> + _mm256_storeu_si256((__m256i *)((uint8_t *)dst + 3 * 32), ymm3);
> + dst = (uint8_t *)dst + 128;
> + }
> +}
> +
> +static inline void *
> +rte_memcpy_generic(void *dst, const void *src, size_t n)
> +{
> + uintptr_t dstu = (uintptr_t)dst;
> + uintptr_t srcu = (uintptr_t)src;
> + void *ret = dst;
> + size_t dstofss;
> + size_t bits;
> +
> + /**
> + * Copy less than 16 bytes
> + */
> + if (n < 16) {
> + if (n & 0x01) {
> + *(uint8_t *)dstu = *(const uint8_t *)srcu;
> + srcu = (uintptr_t)((const uint8_t *)srcu + 1);
> + dstu = (uintptr_t)((uint8_t *)dstu + 1);
> + }
> + if (n & 0x02) {
> + *(uint16_t *)dstu = *(const uint16_t *)srcu;
> + srcu = (uintptr_t)((const uint16_t *)srcu + 1);
> + dstu = (uintptr_t)((uint16_t *)dstu + 1);
> + }
> + if (n & 0x04) {
> + *(uint32_t *)dstu = *(const uint32_t *)srcu;
> + srcu = (uintptr_t)((const uint32_t *)srcu + 1);
> + dstu = (uintptr_t)((uint32_t *)dstu + 1);
> + }
> + if (n & 0x08)
> + *(uint64_t *)dstu = *(const uint64_t *)srcu;
> + return ret;
> + }
> +
> + /**
> + * Fast way when copy size doesn't exceed 256 bytes
> + */
> + if (n <= 32) {
> + rte_mov16((uint8_t *)dst, (const uint8_t *)src);
> + rte_mov16((uint8_t *)dst - 16 + n,
> + (const uint8_t *)src - 16 + n);
> + return ret;
> + }
> + if (n <= 48) {
> + rte_mov16((uint8_t *)dst, (const uint8_t *)src);
> + rte_mov16((uint8_t *)dst + 16, (const uint8_t *)src + 16);
> + rte_mov16((uint8_t *)dst - 16 + n,
> + (const uint8_t *)src - 16 + n);
> + return ret;
> + }
> + if (n <= 64) {
> + rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> + rte_mov32((uint8_t *)dst - 32 + n,
> + (const uint8_t *)src - 32 + n);
> + return ret;
> + }
> + if (n <= 256) {
> + if (n >= 128) {
> + n -= 128;
> + rte_mov128((uint8_t *)dst, (const uint8_t *)src);
> + src = (const uint8_t *)src + 128;
> + dst = (uint8_t *)dst + 128;
> + }
> +COPY_BLOCK_128_BACK31:
> + if (n >= 64) {
> + n -= 64;
> + rte_mov64((uint8_t *)dst, (const uint8_t *)src);
> + src = (const uint8_t *)src + 64;
> + dst = (uint8_t *)dst + 64;
> + }
> + if (n > 32) {
> + rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> + rte_mov32((uint8_t *)dst - 32 + n,
> + (const uint8_t *)src - 32 + n);
> + return ret;
> + }
> + if (n > 0) {
> + rte_mov32((uint8_t *)dst - 32 + n,
> + (const uint8_t *)src - 32 + n);
> + }
> + return ret;
> + }
> +
> + /**
> + * Make store aligned when copy size exceeds 256 bytes
> + */
> + dstofss = (uintptr_t)dst & 0x1F;
> + if (dstofss > 0) {
> + dstofss = 32 - dstofss;
> + n -= dstofss;
> + rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> + src = (const uint8_t *)src + dstofss;
> + dst = (uint8_t *)dst + dstofss;
> + }
> +
> + /**
> + * Copy 128-byte blocks
> + */
> + rte_mov128blocks((uint8_t *)dst, (const uint8_t *)src, n);
> + bits = n;
> + n = n & 127;
> + bits -= n;
> + src = (const uint8_t *)src + bits;
> + dst = (uint8_t *)dst + bits;
> +
> + /**
> + * Copy whatever left
> + */
> + goto COPY_BLOCK_128_BACK31;
> +}
> +
> +#else /* RTE_MACHINE_CPUFLAG */
> +
> +#define ALIGNMENT_MASK 0x0F
> +
> +/**
> + * SSE & AVX implementation below
> + */
> +
> +/**
> + * Copy 16 bytes from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov16(uint8_t *dst, const uint8_t *src)
> +{
> + __m128i xmm0;
> +
> + xmm0 = _mm_loadu_si128((const __m128i *)(const __m128i *)src);
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> +}
> +
> +/**
> + * Copy 32 bytes from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov32(uint8_t *dst, const uint8_t *src)
> +{
> + rte_mov16((uint8_t *)dst + 0 * 16, (const uint8_t *)src + 0 * 16);
> + rte_mov16((uint8_t *)dst + 1 * 16, (const uint8_t *)src + 1 * 16);
> +}
> +
> +/**
> + * Copy 64 bytes from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov64(uint8_t *dst, const uint8_t *src)
> +{
> + rte_mov16((uint8_t *)dst + 0 * 16, (const uint8_t *)src + 0 * 16);
> + rte_mov16((uint8_t *)dst + 1 * 16, (const uint8_t *)src + 1 * 16);
> + rte_mov16((uint8_t *)dst + 2 * 16, (const uint8_t *)src + 2 * 16);
> + rte_mov16((uint8_t *)dst + 3 * 16, (const uint8_t *)src + 3 * 16);
> +}
> +
> +/**
> + * Copy 128 bytes from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov128(uint8_t *dst, const uint8_t *src)
> +{
> + rte_mov16((uint8_t *)dst + 0 * 16, (const uint8_t *)src + 0 * 16);
> + rte_mov16((uint8_t *)dst + 1 * 16, (const uint8_t *)src + 1 * 16);
> + rte_mov16((uint8_t *)dst + 2 * 16, (const uint8_t *)src + 2 * 16);
> + rte_mov16((uint8_t *)dst + 3 * 16, (const uint8_t *)src + 3 * 16);
> + rte_mov16((uint8_t *)dst + 4 * 16, (const uint8_t *)src + 4 * 16);
> + rte_mov16((uint8_t *)dst + 5 * 16, (const uint8_t *)src + 5 * 16);
> + rte_mov16((uint8_t *)dst + 6 * 16, (const uint8_t *)src + 6 * 16);
> + rte_mov16((uint8_t *)dst + 7 * 16, (const uint8_t *)src + 7 * 16);
> +}
> +
> +/**
> + * Copy 256 bytes from one location to another,
> + * locations should not overlap.
> + */
> +static inline void
> +rte_mov256(uint8_t *dst, const uint8_t *src)
> +{
> + rte_mov16((uint8_t *)dst + 0 * 16, (const uint8_t *)src + 0 * 16);
> + rte_mov16((uint8_t *)dst + 1 * 16, (const uint8_t *)src + 1 * 16);
> + rte_mov16((uint8_t *)dst + 2 * 16, (const uint8_t *)src + 2 * 16);
> + rte_mov16((uint8_t *)dst + 3 * 16, (const uint8_t *)src + 3 * 16);
> + rte_mov16((uint8_t *)dst + 4 * 16, (const uint8_t *)src + 4 * 16);
> + rte_mov16((uint8_t *)dst + 5 * 16, (const uint8_t *)src + 5 * 16);
> + rte_mov16((uint8_t *)dst + 6 * 16, (const uint8_t *)src + 6 * 16);
> + rte_mov16((uint8_t *)dst + 7 * 16, (const uint8_t *)src + 7 * 16);
> + rte_mov16((uint8_t *)dst + 8 * 16, (const uint8_t *)src + 8 * 16);
> + rte_mov16((uint8_t *)dst + 9 * 16, (const uint8_t *)src + 9 * 16);
> + rte_mov16((uint8_t *)dst + 10 * 16, (const uint8_t *)src + 10 * 16);
> + rte_mov16((uint8_t *)dst + 11 * 16, (const uint8_t *)src + 11 * 16);
> + rte_mov16((uint8_t *)dst + 12 * 16, (const uint8_t *)src + 12 * 16);
> + rte_mov16((uint8_t *)dst + 13 * 16, (const uint8_t *)src + 13 * 16);
> + rte_mov16((uint8_t *)dst + 14 * 16, (const uint8_t *)src + 14 * 16);
> + rte_mov16((uint8_t *)dst + 15 * 16, (const uint8_t *)src + 15 * 16);
> +}
> +
> +/**
> + * Macro for copying unaligned block from one location to another with
> constant load offset,
> + * 47 bytes leftover maximum,
> + * locations should not overlap.
> + * Requirements:
> + * - Store is aligned
> + * - Load offset is <offset>, which must be immediate value within [1, 15]
> + * - For <src>, make sure <offset> bit backwards & <16 - offset> bit
> forwards are available for loading
> + * - <dst>, <src>, <len> must be variables
> + * - __m128i <xmm0> ~ <xmm8> must be pre-defined
> + */
> +#define MOVEUNALIGNED_LEFT47_IMM(dst, src, len, offset)
> \
> +__extension__ ({
> \
> + int tmp;
> \
> + while (len >= 128 + 16 - offset) {
> \
> + xmm0 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 0 * 16)); \
> + len -= 128;
> \
> + xmm1 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 1 * 16)); \
> + xmm2 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 2 * 16)); \
> + xmm3 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 3 * 16)); \
> + xmm4 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 4 * 16)); \
> + xmm5 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 5 * 16)); \
> + xmm6 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 6 * 16)); \
> + xmm7 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 7 * 16)); \
> + xmm8 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 8 * 16)); \
> + src = (const uint8_t *)src + 128;
> \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 0 * 16),
> _mm_alignr_epi8(xmm1, xmm0, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 1 * 16),
> _mm_alignr_epi8(xmm2, xmm1, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 2 * 16),
> _mm_alignr_epi8(xmm3, xmm2, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 3 * 16),
> _mm_alignr_epi8(xmm4, xmm3, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 4 * 16),
> _mm_alignr_epi8(xmm5, xmm4, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 5 * 16),
> _mm_alignr_epi8(xmm6, xmm5, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 6 * 16),
> _mm_alignr_epi8(xmm7, xmm6, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 7 * 16),
> _mm_alignr_epi8(xmm8, xmm7, offset)); \
> + dst = (uint8_t *)dst + 128;
> \
> + }
> \
> + tmp = len;
> \
> + len = ((len - 16 + offset) & 127) + 16 - offset;
> \
> + tmp -= len;
> \
> + src = (const uint8_t *)src + tmp;
> \
> + dst = (uint8_t *)dst + tmp;
> \
> + if (len >= 32 + 16 - offset) {
> \
> + while (len >= 32 + 16 - offset) {
> \
> + xmm0 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 0 * 16)); \
> + len -= 32;
> \
> + xmm1 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 1 * 16)); \
> + xmm2 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 2 * 16)); \
> + src = (const uint8_t *)src + 32;
> \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 0 * 16),
> _mm_alignr_epi8(xmm1, xmm0, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 1 * 16),
> _mm_alignr_epi8(xmm2, xmm1, offset)); \
> + dst = (uint8_t *)dst + 32;
> \
> + }
> \
> + tmp = len;
> \
> + len = ((len - 16 + offset) & 31) + 16 - offset;
> \
> + tmp -= len;
> \
> + src = (const uint8_t *)src + tmp;
> \
> + dst = (uint8_t *)dst + tmp;
> \
> + }
> \
> +})
> +
> +/**
> + * Macro for copying unaligned block from one location to another,
> + * 47 bytes leftover maximum,
> + * locations should not overlap.
> + * Use switch here because the aligning instruction requires immediate value
> for shift count.
> + * Requirements:
> + * - Store is aligned
> + * - Load offset is <offset>, which must be within [1, 15]
> + * - For <src>, make sure <offset> bit backwards & <16 - offset> bit
> forwards are available for loading
> + * - <dst>, <src>, <len> must be variables
> + * - __m128i <xmm0> ~ <xmm8> used in MOVEUNALIGNED_LEFT47_IMM must be
> pre-defined
> + */
> +#define MOVEUNALIGNED_LEFT47(dst, src, len, offset) \
> +__extension__ ({ \
> + switch (offset) { \
> + case 0x01: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x01); break; \
> + case 0x02: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x02); break; \
> + case 0x03: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x03); break; \
> + case 0x04: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x04); break; \
> + case 0x05: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x05); break; \
> + case 0x06: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x06); break; \
> + case 0x07: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x07); break; \
> + case 0x08: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x08); break; \
> + case 0x09: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x09); break; \
> + case 0x0A: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0A); break; \
> + case 0x0B: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0B); break; \
> + case 0x0C: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0C); break; \
> + case 0x0D: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0D); break; \
> + case 0x0E: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0E); break; \
> + case 0x0F: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0F); break; \
> + default:; \
> + } \
> +})
> +
> +static inline void *
> +rte_memcpy_generic(void *dst, const void *src, size_t n)
> +{
> + __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8;
> + uintptr_t dstu = (uintptr_t)dst;
> + uintptr_t srcu = (uintptr_t)src;
> + void *ret = dst;
> + size_t dstofss;
> + size_t srcofs;
> +
> + /**
> + * Copy less than 16 bytes
> + */
> + if (n < 16) {
> + if (n & 0x01) {
> + *(uint8_t *)dstu = *(const uint8_t *)srcu;
> + srcu = (uintptr_t)((const uint8_t *)srcu + 1);
> + dstu = (uintptr_t)((uint8_t *)dstu + 1);
> + }
> + if (n & 0x02) {
> + *(uint16_t *)dstu = *(const uint16_t *)srcu;
> + srcu = (uintptr_t)((const uint16_t *)srcu + 1);
> + dstu = (uintptr_t)((uint16_t *)dstu + 1);
> + }
> + if (n & 0x04) {
> + *(uint32_t *)dstu = *(const uint32_t *)srcu;
> + srcu = (uintptr_t)((const uint32_t *)srcu + 1);
> + dstu = (uintptr_t)((uint32_t *)dstu + 1);
> + }
> + if (n & 0x08)
> + *(uint64_t *)dstu = *(const uint64_t *)srcu;
> + return ret;
> + }
> +
> + /**
> + * Fast way when copy size doesn't exceed 512 bytes
> + */
> + if (n <= 32) {
> + rte_mov16((uint8_t *)dst, (const uint8_t *)src);
> + rte_mov16((uint8_t *)dst - 16 + n,
> + (const uint8_t *)src - 16 + n);
> + return ret;
> + }
> + if (n <= 48) {
> + rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> + rte_mov16((uint8_t *)dst - 16 + n,
> + (const uint8_t *)src - 16 + n);
> + return ret;
> + }
> + if (n <= 64) {
> + rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> + rte_mov16((uint8_t *)dst + 32, (const uint8_t *)src + 32);
> + rte_mov16((uint8_t *)dst - 16 + n,
> + (const uint8_t *)src - 16 + n);
> + return ret;
> + }
> + if (n <= 128)
> + goto COPY_BLOCK_128_BACK15;
> + if (n <= 512) {
> + if (n >= 256) {
> + n -= 256;
> + rte_mov128((uint8_t *)dst, (const uint8_t *)src);
> + rte_mov128((uint8_t *)dst + 128,
> + (const uint8_t *)src + 128);
> + src = (const uint8_t *)src + 256;
> + dst = (uint8_t *)dst + 256;
> + }
> +COPY_BLOCK_255_BACK15:
> + if (n >= 128) {
> + n -= 128;
> + rte_mov128((uint8_t *)dst, (const uint8_t *)src);
> + src = (const uint8_t *)src + 128;
> + dst = (uint8_t *)dst + 128;
> + }
> +COPY_BLOCK_128_BACK15:
> + if (n >= 64) {
> + n -= 64;
> + rte_mov64((uint8_t *)dst, (const uint8_t *)src);
> + src = (const uint8_t *)src + 64;
> + dst = (uint8_t *)dst + 64;
> + }
> +COPY_BLOCK_64_BACK15:
> + if (n >= 32) {
> + n -= 32;
> + rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> + src = (const uint8_t *)src + 32;
> + dst = (uint8_t *)dst + 32;
> + }
> + if (n > 16) {
> + rte_mov16((uint8_t *)dst, (const uint8_t *)src);
> + rte_mov16((uint8_t *)dst - 16 + n,
> + (const uint8_t *)src - 16 + n);
> + return ret;
> + }
> + if (n > 0) {
> + rte_mov16((uint8_t *)dst - 16 + n,
> + (const uint8_t *)src - 16 + n);
> + }
> + return ret;
> + }
> +
> + /**
> + * Make store aligned when copy size exceeds 512 bytes,
> + * and make sure the first 15 bytes are copied, because
> + * unaligned copy functions require up to 15 bytes
> + * backwards access.
> + */
> + dstofss = (uintptr_t)dst & 0x0F;
> + if (dstofss > 0) {
> + dstofss = 16 - dstofss + 16;
> + n -= dstofss;
> + rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> + src = (const uint8_t *)src + dstofss;
> + dst = (uint8_t *)dst + dstofss;
> + }
> + srcofs = ((uintptr_t)src & 0x0F);
> +
> + /**
> + * For aligned copy
> + */
> + if (srcofs == 0) {
> + /**
> + * Copy 256-byte blocks
> + */
> + for (; n >= 256; n -= 256) {
> + rte_mov256((uint8_t *)dst, (const uint8_t *)src);
> + dst = (uint8_t *)dst + 256;
> + src = (const uint8_t *)src + 256;
> + }
> +
> + /**
> + * Copy whatever left
> + */
> + goto COPY_BLOCK_255_BACK15;
> + }
> +
> + /**
> + * For copy with unaligned load
> + */
> + MOVEUNALIGNED_LEFT47(dst, src, n, srcofs);
> +
> + /**
> + * Copy whatever left
> + */
> + goto COPY_BLOCK_64_BACK15;
> +}
> +
> +#endif /* RTE_MACHINE_CPUFLAG */
> +
> +static inline void *
> +rte_memcpy_aligned(void *dst, const void *src, size_t n)
> +{
> + void *ret = dst;
> +
> + /* Copy size <= 16 bytes */
> + if (n < 16) {
> + if (n & 0x01) {
> + *(uint8_t *)dst = *(const uint8_t *)src;
> + src = (const uint8_t *)src + 1;
> + dst = (uint8_t *)dst + 1;
> + }
> + if (n & 0x02) {
> + *(uint16_t *)dst = *(const uint16_t *)src;
> + src = (const uint16_t *)src + 1;
> + dst = (uint16_t *)dst + 1;
> + }
> + if (n & 0x04) {
> + *(uint32_t *)dst = *(const uint32_t *)src;
> + src = (const uint32_t *)src + 1;
> + dst = (uint32_t *)dst + 1;
> + }
> + if (n & 0x08)
> + *(uint64_t *)dst = *(const uint64_t *)src;
> +
> + return ret;
> + }
> +
> + /* Copy 16 <= size <= 32 bytes */
> + if (n <= 32) {
> + rte_mov16((uint8_t *)dst, (const uint8_t *)src);
> + rte_mov16((uint8_t *)dst - 16 + n,
> + (const uint8_t *)src - 16 + n);
> +
> + return ret;
> + }
> +
> + /* Copy 32 < size <= 64 bytes */
> + if (n <= 64) {
> + rte_mov32((uint8_t *)dst, (const uint8_t *)src);
> + rte_mov32((uint8_t *)dst - 32 + n,
> + (const uint8_t *)src - 32 + n);
> +
> + return ret;
> + }
> +
> + /* Copy 64 bytes blocks */
> + for (; n >= 64; n -= 64) {
> + rte_mov64((uint8_t *)dst, (const uint8_t *)src);
> + dst = (uint8_t *)dst + 64;
> + src = (const uint8_t *)src + 64;
> + }
> +
> + /* Copy whatever left */
> + rte_mov64((uint8_t *)dst - 64 + n,
> + (const uint8_t *)src - 64 + n);
> +
> + return ret;
> +}
> +
> +static inline void *
> +rte_memcpy_internal(void *dst, const void *src, size_t n)
> +{
> + if (!(((uintptr_t)dst | (uintptr_t)src) & ALIGNMENT_MASK))
> + return rte_memcpy_aligned(dst, src, n);
> + else
> + return rte_memcpy_generic(dst, src, n);
> +}
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* _RTE_MEMCPY_INTERNAL_X86_64_H_ */
> diff --git a/lib/librte_eal/common/include/arch/x86/rte_memcpy_sse.c
> b/lib/librte_eal/common/include/arch/x86/rte_memcpy_sse.c
> new file mode 100644
> index 0000000..2532696
> --- /dev/null
> +++ b/lib/librte_eal/common/include/arch/x86/rte_memcpy_sse.c
> @@ -0,0 +1,585 @@
> +/*-
> + * BSD LICENSE
> + *
> + * Copyright(c) 2010-2017 Intel Corporation. All rights reserved.
> + * All rights reserved.
> + *
> + * Redistribution and use in source and binary forms, with or without
> + * modification, are permitted provided that the following conditions
> + * are met:
> + *
> + * * Redistributions of source code must retain the above copyright
> + * notice, this list of conditions and the following disclaimer.
> + * * Redistributions in binary form must reproduce the above copyright
> + * notice, this list of conditions and the following disclaimer in
> + * the documentation and/or other materials provided with the
> + * distribution.
> + * * Neither the name of Intel Corporation nor the names of its
> + * contributors may be used to endorse or promote products derived
> + * from this software without specific prior written permission.
> + *
> + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
> + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
> + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
> + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
> + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
> + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
> + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> + */
> +
> +#include <rte_memcpy.h>
> +
> +/**
> + * Macro for copying unaligned block from one location to another with
> constant load offset,
> + * 47 bytes leftover maximum,
> + * locations should not overlap.
> + * Requirements:
> + * - Store is aligned
> + * - Load offset is <offset>, which must be immediate value within [1, 15]
> + * - For <src>, make sure <offset> bit backwards & <16 - offset> bit
> forwards are available for loading
> + * - <dst>, <src>, <len> must be variables
> + * - __m128i <xmm0> ~ <xmm8> must be pre-defined
> + */
> +#define MOVEUNALIGNED_LEFT47_IMM(dst, src, len, offset)
> \
> +__extension__ ({
> \
> + int tmp;
> \
> + while (len >= 128 + 16 - offset) {
> \
> + xmm0 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 0 * 16)); \
> + len -= 128;
> \
> + xmm1 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 1 * 16)); \
> + xmm2 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 2 * 16)); \
> + xmm3 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 3 * 16)); \
> + xmm4 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 4 * 16)); \
> + xmm5 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 5 * 16)); \
> + xmm6 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 6 * 16)); \
> + xmm7 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 7 * 16)); \
> + xmm8 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 8 * 16)); \
> + src = (const uint8_t *)src + 128;
> \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 0 * 16),
> _mm_alignr_epi8(xmm1, xmm0, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 1 * 16),
> _mm_alignr_epi8(xmm2, xmm1, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 2 * 16),
> _mm_alignr_epi8(xmm3, xmm2, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 3 * 16),
> _mm_alignr_epi8(xmm4, xmm3, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 4 * 16),
> _mm_alignr_epi8(xmm5, xmm4, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 5 * 16),
> _mm_alignr_epi8(xmm6, xmm5, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 6 * 16),
> _mm_alignr_epi8(xmm7, xmm6, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 7 * 16),
> _mm_alignr_epi8(xmm8, xmm7, offset)); \
> + dst = (uint8_t *)dst + 128;
> \
> + }
> \
> + tmp = len;
> \
> + len = ((len - 16 + offset) & 127) + 16 - offset;
> \
> + tmp -= len;
> \
> + src = (const uint8_t *)src + tmp;
> \
> + dst = (uint8_t *)dst + tmp;
> \
> + if (len >= 32 + 16 - offset) {
> \
> + while (len >= 32 + 16 - offset) {
> \
> + xmm0 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 0 * 16)); \
> + len -= 32;
> \
> + xmm1 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 1 * 16)); \
> + xmm2 = _mm_loadu_si128((const __m128i *)((const uint8_t *)src -
> offset + 2 * 16)); \
> + src = (const uint8_t *)src + 32;
> \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 0 * 16),
> _mm_alignr_epi8(xmm1, xmm0, offset)); \
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst + 1 * 16),
> _mm_alignr_epi8(xmm2, xmm1, offset)); \
> + dst = (uint8_t *)dst + 32;
> \
> + }
> \
> + tmp = len;
> \
> + len = ((len - 16 + offset) & 31) + 16 - offset;
> \
> + tmp -= len;
> \
> + src = (const uint8_t *)src + tmp;
> \
> + dst = (uint8_t *)dst + tmp;
> \
> + }
> \
> +})
> +
> +/**
> + * Macro for copying unaligned block from one location to another,
> + * 47 bytes leftover maximum,
> + * locations should not overlap.
> + * Use switch here because the aligning instruction requires immediate value
> for shift count.
> + * Requirements:
> + * - Store is aligned
> + * - Load offset is <offset>, which must be within [1, 15]
> + * - For <src>, make sure <offset> bit backwards & <16 - offset> bit
> forwards are available for loading
> + * - <dst>, <src>, <len> must be variables
> + * - __m128i <xmm0> ~ <xmm8> used in MOVEUNALIGNED_LEFT47_IMM must be
> pre-defined
> + */
> +#define MOVEUNALIGNED_LEFT47(dst, src, len, offset) \
> +__extension__ ({ \
> + switch (offset) { \
> + case 0x01: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x01); break; \
> + case 0x02: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x02); break; \
> + case 0x03: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x03); break; \
> + case 0x04: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x04); break; \
> + case 0x05: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x05); break; \
> + case 0x06: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x06); break; \
> + case 0x07: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x07); break; \
> + case 0x08: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x08); break; \
> + case 0x09: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x09); break; \
> + case 0x0A: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0A); break; \
> + case 0x0B: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0B); break; \
> + case 0x0C: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0C); break; \
> + case 0x0D: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0D); break; \
> + case 0x0E: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0E); break; \
> + case 0x0F: MOVEUNALIGNED_LEFT47_IMM(dst, src, n, 0x0F); break; \
> + default:; \
> + } \
> +})
> +
> +void *
> +rte_memcpy_sse(void *dst, const void *src, size_t n)
> +{
> + if (!(((uintptr_t)dst | (uintptr_t)src) & 0x0F)) {
> + void *ret = dst;
> +
> + /* Copy size <= 16 bytes */
> + if (n < 16) {
> + if (n & 0x01) {
> + *(uint8_t *)dst = *(const uint8_t *)src;
> + src = (const uint8_t *)src + 1;
> + dst = (uint8_t *)dst + 1;
> + }
> + if (n & 0x02) {
> + *(uint16_t *)dst = *(const uint16_t *)src;
> + src = (const uint16_t *)src + 1;
> + dst = (uint16_t *)dst + 1;
> + }
> + if (n & 0x04) {
> + *(uint32_t *)dst = *(const uint32_t *)src;
> + src = (const uint32_t *)src + 1;
> + dst = (uint32_t *)dst + 1;
> + }
> + if (n & 0x08)
> + *(uint64_t *)dst = *(const uint64_t *)src;
> +
> + return ret;
> + }
> +
> + /* Copy 16 <= size <= 32 bytes */
> + if (n <= 32) {
> + __m128i xmm0, xmm1;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 16 + n));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst - 16 + n), xmm1);
> +
> + return ret;
> + }
> +
> + /* Copy 32 < size <= 64 bytes */
> + if (n <= 64) {
> + __m128i xmm0, xmm1, xmm2, xmm3;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 16));
> + xmm2 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 32 + n));
> + xmm3 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 16 + n));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 16), xmm1);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst - 32 + n), xmm2);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst - 16 + n), xmm3);
> +
> + return ret;
> + }
> +
> + /* Copy 64 bytes blocks */
> + for (; n >= 64; n -= 64) {
> + __m128i xmm0, xmm1, xmm2, xmm3;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 16));
> + xmm2 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 2*16));
> + xmm3 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 3*16));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 16), xmm1);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 2*16), xmm2);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 3*16), xmm3);
> + dst = (uint8_t *)dst + 64;
> + src = (const uint8_t *)src + 64;
> + }
> +
> + /* Copy whatever left */
> + __m128i xmm0, xmm1, xmm2, xmm3;
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 64 + n));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 48 + n));
> + xmm2 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 32 + n));
> + xmm3 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 16 + n));
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst - 64 + n), xmm0);
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst - 48 + n), xmm1);
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst - 32 + n), xmm2);
> + _mm_storeu_si128((__m128i *)((uint8_t *)dst - 16 + n), xmm3);
> +
> + return ret;
> + } else {
> + __m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8;
> + uintptr_t dstu = (uintptr_t)dst;
> + uintptr_t srcu = (uintptr_t)src;
> + void *ret = dst;
> + size_t dstofss;
> + size_t srcofs;
> +
> + /**
> + * Copy less than 16 bytes
> + */
> + if (n < 16) {
> + if (n & 0x01) {
> + *(uint8_t *)dstu = *(const uint8_t *)srcu;
> + srcu = (uintptr_t)((const uint8_t *)srcu + 1);
> + dstu = (uintptr_t)((uint8_t *)dstu + 1);
> + }
> + if (n & 0x02) {
> + *(uint16_t *)dstu = *(const uint16_t *)srcu;
> + srcu = (uintptr_t)((const uint16_t *)srcu + 1);
> + dstu = (uintptr_t)((uint16_t *)dstu + 1);
> + }
> + if (n & 0x04) {
> + *(uint32_t *)dstu = *(const uint32_t *)srcu;
> + srcu = (uintptr_t)((const uint32_t *)srcu + 1);
> + dstu = (uintptr_t)((uint32_t *)dstu + 1);
> + }
> + if (n & 0x08)
> + *(uint64_t *)dstu = *(const uint64_t *)srcu;
> + return ret;
> + }
> +
> + /**
> + * Fast way when copy size doesn't exceed 512 bytes
> + */
> + if (n <= 32) {
> + __m128i xmm0, xmm1;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 16 + n));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst - 16 + n), xmm1);
> + return ret;
> + }
> + if (n <= 48) {
> + __m128i xmm0, xmm1, xmm2;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 16));
> + xmm2 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 16 + n));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 16), xmm1);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst - 16 + n), xmm2);
> + return ret;
> + }
> + if (n <= 64) {
> + __m128i xmm0, xmm1, xmm2, xmm3;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 16));
> + xmm2 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 32));
> + xmm3 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 16 + n));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 16), xmm1);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 32), xmm2);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst - 16 + n), xmm3);
> + return ret;
> + }
> + if (n <= 128)
> + goto COPY_BLOCK_128_BACK15;
> + if (n <= 512) {
> + if (n >= 256) {
> + n -= 256;
> + __m128i xmm0, xmm1;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 16));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 16), xmm1);
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 2*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 3*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 2*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 3*16), xmm1);
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 4*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 5*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 4*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 5*16), xmm1);
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 6*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 7*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 6*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 7*16), xmm1);
> +
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 128));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 128 + 16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 128), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 128 + 16), xmm1);
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 128 + 2*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 128 + 3*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 128 + 2*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 128 + 3*16), xmm1);
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 128 + 4*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 128 + 5*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 128 + 4*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 128 + 5*16), xmm1);
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 128 + 6*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 128 + 7*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 128 + 6*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 128 + 7*16), xmm1);
> + src = (const uint8_t *)src + 256;
> + dst = (uint8_t *)dst + 256;
> + }
> +COPY_BLOCK_255_BACK15:
> + if (n >= 128) {
> + n -= 128;
> + __m128i xmm0, xmm1;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 16));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 16), xmm1);
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 2*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 3*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 2*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 3*16), xmm1);
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 4*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 5*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 4*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 5*16), xmm1);
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 6*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 7*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 6*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 7*16), xmm1);
> + src = (const uint8_t *)src + 128;
> + dst = (uint8_t *)dst + 128;
> + }
> +COPY_BLOCK_128_BACK15:
> + if (n >= 64) {
> + n -= 64;
> + __m128i xmm0, xmm1;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 16));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 16), xmm1);
> +
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 2*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 3*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 2*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 3*16), xmm1);
> + src = (const uint8_t *)src + 64;
> + dst = (uint8_t *)dst + 64;
> + }
> +COPY_BLOCK_64_BACK15:
> + if (n >= 32) {
> + n -= 32;
> + __m128i xmm0, xmm1;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 16));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 16), xmm1);
> + src = (const uint8_t *)src + 32;
> + dst = (uint8_t *)dst + 32;
> + }
> + if (n > 16) {
> + __m128i xmm0, xmm1;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 16 + n));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst - 16 + n), xmm1);
> + return ret;
> + }
> + if (n > 0) {
> + __m128i xmm0;
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src - 16 + n));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst - 16 + n), xmm0);
> + }
> + return ret;
> + }
> +
> + /**
> + * Make store aligned when copy size exceeds 512 bytes,
> + * and make sure the first 15 bytes are copied, because
> + * unaligned copy functions require up to 15 bytes
> + * backwards access.
> + */
> + dstofss = (uintptr_t)dst & 0x0F;
> + if (dstofss > 0) {
> + dstofss = 16 - dstofss + 16;
> + n -= dstofss;
> + __m128i xmm0, xmm1;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 16));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 16), xmm1);
> + src = (const uint8_t *)src + dstofss;
> + dst = (uint8_t *)dst + dstofss;
> + }
> + srcofs = ((uintptr_t)src & 0x0F);
> +
> + /**
> + * For aligned copy
> + */
> + if (srcofs == 0) {
> + /**
> + * Copy 256-byte blocks
> + */
> + for (; n >= 256; n -= 256) {
> + __m128i xmm0, xmm1;
> + xmm0 = _mm_loadu_si128((const __m128i *)src);
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 16));
> + _mm_storeu_si128((__m128i *)dst, xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 16), xmm1);
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 2*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 3*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 2*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 3*16), xmm1);
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 4*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 5*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 4*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 5*16), xmm1);
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 6*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 7*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 6*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 7*16), xmm1);
> +
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 8*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 9*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 8*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 9*16), xmm1);
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 10*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 11*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 10*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 11*16), xmm1);
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 12*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 13*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 12*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 13*16), xmm1);
> + xmm0 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 14*16));
> + xmm1 = _mm_loadu_si128((const __m128i *)
> + ((const uint8_t *)src + 15*16));
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 14*16), xmm0);
> + _mm_storeu_si128((__m128i *)
> + ((uint8_t *)dst + 15*16), xmm1);
> + dst = (uint8_t *)dst + 256;
> + src = (const uint8_t *)src + 256;
> + }
> +
> + /**
> + * Copy whatever left
> + */
> + goto COPY_BLOCK_255_BACK15;
> + }
> +
> + /**
> + * For copy with unaligned load
> + */
> + MOVEUNALIGNED_LEFT47(dst, src, n, srcofs);
> +
> + /**
> + * Copy whatever left
> + */
> + goto COPY_BLOCK_64_BACK15;
> + }
> +}
> diff --git a/lib/librte_eal/linuxapp/eal/Makefile
> b/lib/librte_eal/linuxapp/eal/Makefile
> index 90bca4d..88d3298 100644
> --- a/lib/librte_eal/linuxapp/eal/Makefile
> +++ b/lib/librte_eal/linuxapp/eal/Makefile
> @@ -40,6 +40,7 @@ VPATH += $(RTE_SDK)/lib/librte_eal/common/arch/$(ARCH_DIR)
> LIBABIVER := 5
>
> VPATH += $(RTE_SDK)/lib/librte_eal/common
> +VPATH += $(RTE_SDK)/lib/librte_eal/common/include/arch/$(ARCH_DIR)
>
> CFLAGS += -I$(SRCDIR)/include
> CFLAGS += -I$(RTE_SDK)/lib/librte_eal/common
> @@ -105,6 +106,22 @@ SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += rte_service.c
> SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += rte_cpuflags.c
> SRCS-$(CONFIG_RTE_ARCH_X86) += rte_spinlock.c
>
> +# for run-time dispatch of memcpy
> +SRCS-$(CONFIG_RTE_ARCH_X86) += rte_memcpy.c
> +SRCS-$(CONFIG_RTE_ARCH_X86) += rte_memcpy_sse.c
> +
> +# if the compiler supports AVX512, add avx512 file
> +ifneq ($(filter $(MACHINE_CFLAGS),CC_SUPPORT_AVX512F),)
> +SRCS-$(CONFIG_RTE_ARCH_X86) += rte_memcpy_avx512f.c
> +CFLAGS_rte_memcpy_avx512f.o += -mavx512f
> +endif
> +
> +# if the compiler supports AVX2, add avx2 file
> +ifneq ($(filter $(MACHINE_CFLAGS),CC_SUPPORT_AVX2),)
> +SRCS-$(CONFIG_RTE_ARCH_X86) += rte_memcpy_avx2.c
> +CFLAGS_rte_memcpy_avx2.o += -mavx2
> +endif
> +
> CFLAGS_eal_common_cpuflags.o := $(CPUFLAGS_LIST)
>
> CFLAGS_eal.o := -D_GNU_SOURCE
> diff --git a/mk/rte.cpuflags.mk b/mk/rte.cpuflags.mk
> index a813c91..8a7a1e7 100644
> --- a/mk/rte.cpuflags.mk
> +++ b/mk/rte.cpuflags.mk
> @@ -134,6 +134,20 @@ endif
>
> MACHINE_CFLAGS += $(addprefix -DRTE_MACHINE_CPUFLAG_,$(CPUFLAGS))
>
> +# Check if the compiler suppoerts AVX512
> +CC_SUPPORT_AVX512F := $(shell $(CC) -mavx512f -dM -E - < /dev/null 2>&1 |
> grep -q AVX512 && echo 1)
> +ifeq ($(CC_SUPPORT_AVX512F),1)
> +ifeq ($(CONFIG_RTE_ENABLE_AVX512),y)
> +MACHINE_CFLAGS += -DCC_SUPPORT_AVX512F
> +endif
> +endif
> +
> +# Check if the compiler supports AVX2
> +CC_SUPPORT_AVX2 := $(shell $(CC) -mavx2 -dM -E - < /dev/null 2>&1 | grep -q
> AVX2 && echo 1)
> +ifeq ($(CC_SUPPORT_AVX2),1)
> +MACHINE_CFLAGS += -DCC_SUPPORT_AVX2
> +endif
> +
> # To strip whitespace
> comma:= ,
> empty:=
> --
> 2.7.4
